AEGEAN AMMONOIDS FROM THE ANISIAN (MIDDLE TRIASSIC) GSSP CANDIDATE SECTION DEŞLI CAIRA (NORTHERN DOBROGEA, ROMANIA)
DOI:
https://doi.org/10.54103/2039-4942/24683Keywords:
Olenekian; Anisian; Ammonitico Rosso; taphonomy; chronostratigraphy; Tethys; Global correlations.Abstract
Deşli Caira in northern Dobrogea (Romania) is one of the key localities for the definition of the GSSP of the base of the Anisian stage. Eugen Grădinaru studied the Hallstatt limestones-facies of the Agighiol Limestone in this section for over 30 years, amassing a huge collection of ammonoids, and he also involved several specialists in the study of specific fossil groups. These ammonoids, which are the historical group for Triassic marine chronostratigraphy, have never been described until now. We present here the results of our ongoing study of the Grădinaru collection, including a new bed-by-bed sampling of the section and description of some Aegean taxa. The ammonoids consisting of 959 mostly juvenile specimens are not reelaborated, but are often preserved as hollow phragmocones filled by sediment or by sediment and cement. The ammonoid record of the section is dominated by leiostracan ammonoids, as is usual for the Ammonitico Rosso facies of the Agighiol Limestone. The Olenekian/Anisian Ammonoid Faunal Turnover (O/A AFT), the most significant turnover in the history of Triassic Ammonoidea, occurs within a 1.1 m-thick interval.
We provide descriptions of Aegean ammonoids, i.e., Stenopopanoceras, Paracrochordiceras, Aegeiceras, Leiophyllites, as well as of Gradinaruites aegeicus n. gen. n. sp, Robinsonites simionescui n. sp. and Acrochordiceras sp.
The ammonoid range chart, integrated with magnetostratigraphy and conodont chronostratigraphy, provides a new calibration of the GMPTS, and emphasizes the nearly coincident position of the O/A AFT with the base of magnetochron MT3.
We present the correlation of the Deşli Caira section with the Chios, Kçira and Wantou sections, based on ammonoids and integrated stratigraphy and an overview of ammonoid faunal comparison with the most important O/A successions. Deşli Caira provides the best record of the O/A AFT with rich Aegean ammonoid faunas, allowing for the best calibration of the magnetochrons MT1-MT3. Therefore, we propose the combination of the O/A AFT with the base of MT3 as a powerful solution for the definition of the GSSP of the Anisian.
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References
Arkell W.J., Kummel B. & Wright C.W. (1957) - Mesozoic ammonoidea. In: Moore R.C. (Ed.) - Treatise on Invertebrate Paleontology, Part L Mollusca 4, Cephalopoda Ammonoidea: L80-L490.
Arthaber G. (1908) - Über die Entdeckung von Untertrias in Albanien und ihre faunistische Bewertung. Mitteilungen der Geologischen Gesellschaft Wien, 1: 245-289.
Arthaber G. (1909) - Über neue Funde in der Untertrias von Albanien. Mitteilungen der Geologischen Gesellschaft Wien, 2: 227-234.
Arthaber G. (1911) - Die Trias von Albanien. Beiträge zur Paläontologie Österreich-Ungarns und des Orients, 24: 169-277.
Assereto R. (1972) - Notes on the Anisian biostratigraphy of the Gebze area (Kokaeli Peninsula, Turkey). Zeitschrift der Deutschen Geologischen Gesellschaft, 123(2): 435-444.
Assereto R. (1974) - Aegean and Bithynian: Proposal for two new Anisian substages. In: Zapfe H. (Ed.) - Die Stratigraphie der alpin-mediterranean Trias. Schriftenreihe der Erdwissenschaftlichen Kommission, Österreichische Akademie der Wissenschaften, 2: 23-39.
Assereto R., Jacobshagen V., Kauffmann G. & Nicora A. (1980) - The Scythian/Anisian boundary in Chios, Greece. Rivista Italiana di Paleontologia e Stratigrafia, 85(3/4): 715-735.
Atudorei V., Baud A., Crasquin S., Galbrun B., Grădinaru E., Mirăuţă E., Maurice R. & Zerrari S. (1997) - Extended scientific report of the Peri-Tethys project. In: Baud A. (Ed.) - The Triassic of North Dobrogea, Lausanne, Geological Museum, 64 p.
Balini M., Lăcătuş A., Grădinaru, E. & Lazăr I. (2023) - Towards the definition of the GSSP of the Anisian Stage (Middle Triassic): the ammonoid fauna of Deşli Caira section and its correlation with Chios (Greece) and Kçira (Albania). The 14th Romanian Symposium on Palaeontology, September 14-15, 2023, Abstract Book, 21.
Balini M., Lucas S.G., Jenks J.F. & Spielmann J.A. (2010) - Triassic ammonoid biostratigraphy: an overview. In: Lucas S.G. (Ed.) - The Triassic Timescale. Geological Society of London, Special Publications, 334: 221-262.
Balini M., Nicora A., Berra, F., Garzanti E., Levera M., Mattei M., Muttoni G., Zanchi A., Bollati I., Larghi C., Zanchetta S., Salamati R. & Mossavvari F. (2009) - The Triassic stratigraphic succession of Nakhlak (Central Iran), record from an active margin. In: Brunet M.-F., Wilmsen M.& Granath J.W. (Eds.) - South Caspian, northern and central Iran sedimentary basins. Geological Society of London, Special Publications, 312: 287-321.
Baltres A. (1976) - Triassic, platform and basinal carbonate sedimentation in North Dobrogea. International Colloquium on Carbonate rocks and Evaporites, Romania. Guidebook, 15: 43-54.
Baltres A. (2005) - Pre-Cenomanian, mesozoic lithostratigraphic units from North Dobrogea. Studii şi Cercetări de Geologie (2003, published in 2005): 48: 49-90 [in Romanian].
Baltres A., Mirăuţă E., Panin N. & Ghenea C. (2020) - Geological Map Romania, Agighiol Sheet 135d, scale 1:50000, Geological Institute of Romania.
Bando Y. (1970) - Lower Triassic Ammonoids from the Kitakami Massif. Transactions and Proceedings of the Palaeontological Society of Japan, New Series, 79: 337-354.
Bender H. (1970) - Der nachweis von Unter-Anis (“Hydasp”) auf der Insel Chios. Annales Géologiques des Pays Helléniques, 19 (1967): 412-464.
Brânzilă M. (2023) - Ion Th. Simionescu. A scientific journey. Memoirs of the Scientific Sections of the Romanian Academy, 46: 51-63.
Brühwiler T., Ware D., Bucher H., Krystyn L. & Goudemand N. (2010) - New Early Triassic ammonoid faunas from the Dienerian/Smithian boundary beds at the Induan/Olenekian GSSP candidate at Mud (Spiti, Northern India) Journal of Asian Earth Sciences, 39: 724-739.
Bucher H. (1988) - A new Middle Anisian (Middle Triassic) Ammonoid Zone from Northwestern Nevada (USA). Eclogae geologicae Helvetiae, 81(3): 723-762.
Bucher H. (1989) - Lower Anisian Ammonoids from the northern Humboldt Range (northwestern Nevada, USA) and their bearing upon the Lower-Middle Triassic boundary. Eclogae geologicae Helvetiae, 82(3): 945-1002.
Bucher H. (1992) - Ammonoids of the Hyatti Zone and the Anisian transgression in the Triassic Star Peak Group, Northwestern Nevada, USA. Palaeontographica Abteilung A, 223(4-6): 137-166.
Bucher H. (2002) - Early Anisian (Middle Triassic) ammonoid biostratigraphy of northeastern British Columbia. Eclogae geologicae Helvetiae, 95: 277-287.
Charlton T.R., Barber A.J., McGowan A.J., Nicoll R.S., Roniewicz E., Cook S.E., Barkham S.T. & Bird P.R. (2009) - The Triassic of Timor: Lithostratigraphy, chronostratigraphy and palaeogeography. Journal of Asian Earth Sciences, 36: 341-363.
Chen Y., Jiang H., Ogg J. G., Zhang Y., Gong Y. & Yan C. (2020) - Early-Middle Triassic boundary interval: Integrated chemo-bio-magneto-stratigraphy of potential GSSPs for the base of the Anisian Stage in South China. Earth and Planetary Science Letters, 530: 115863.
Crasquin-Soleau S. & Grădinaru E. (1996) - Early Anisian ostracode fauna from the Tulcea Unit (Cimmerian North Dobrogean Orogen, Romania). Annales de Paléontologie, 82: 59-116.
Dagys A.S. (1987) - On the system and phylogeny of longobarditids. Nauka, 1987: 63-70. [in Russian].
Dagys A.S. (1988) - Major features of the Geographic Differentiation of Triassic Ammonoids. In: Wiedmann J. & Kullmann J. (Eds.) - Cephalopods Present and Past: 341-349. Schweizerbart’sche Verlagsb., Stuttgart.
Dagys A. (1998) - Earliest boreal Anisian Czekanowskitidae (Ammonoidea). Mitteilungen aus dem Geologische-Paläontologischen Institut der Universität Hamburg, 81: 121-142.
Dagys A.S. (2001) - The ammonoid family Arctohungaritidae from the Boreal Lower-Middle Anisian (Triassic) of Arctic Asia. Revue de Paléobiologie, 20(2): 543-641.
Dagys A.S. & Ermakova S.P. (1981) - Triassic ammonoids of north Siberia (Family Parapopanoceratidae). U.S.S.R. Academy of Sciences, Transactions of the Institut of Geology and Geophysics, 495: 1-106. [in Russian].
Dagys A.S., Arkhipov Yu.V. & Bychkov Yu.M. (1979) - Stratigraphy of the Triassic system of the North-Eastern Asia. Nauka, 241 pp. [in Russian].
Dagys A.S., Dagys A.A., Ermakova S.P., Kostantinov A.G., Kurushin N.I., Sobolev E.S. & Trushelev A.M. (1996) - Triassic fauna of northeastern Asia. Nauka, 232 pp. [in Russian].
Diener C. (1895) - Himalayan Fossils. The Cephalopoda of the Muschelkalk. Memoirs of the Geological Survey of India, Palaeontologia Indica, Ser. 15, 2(2): 1-118.
Diener C. (1907) - The fauna of the Himalayan Muschelkalk. Memoirs of the Geological Survey of India, Palaeontologia Indica, Ser. 15, 5(2): 1-140
Doguzhaeva L. A., Weaver P. G. & Ciampaglio C. N. (2014) - A unique late Eocene coleoid cephalopod Mississaepia from Mississippi, USA: New data on cuttlebone structure, and their phylogenetic implications. Acta Palaeontologica Polonica, 59(1): 147-162.
Ehiro M. (2022) - Early Anisian (Aegean) ammonoids from the Fukkoshi Formation (Inai Group) with special reference to the Olenekian/Anisian boundary in the South Kitakami Belt, Northeast Japan. Bulletin of the Tohoku University Museum, 21: 39-84.
Enos P., Lehrmann D. J., Jiayong W., Youyi Y., Jiafei X., Chaikin D. H., Minzoni M., Berry A.C. & Montgomery P. (2006) - Triassic evolution of the Yangtze platform in Guizhou Province, People’s Republic of China. Geological Society of America, Special Papers, 417: 1-105.
Fantini Sestini N. (1981) - Lower Anisian (Aegean) Ammonites from Chios Island (Greece). Rivista Italiana di Paleontologia e Stratigrafia, 87(1): 41-66.
Fantini Sestini N. (1988) - Anisian ammonites from Gebze area (Kokaeli Peninsula, Turkey). Rivista Italiana di Paleontologia e Stratigrafia, 94(1): 35-80.
Fernández López S.R. (1984) - Criterios elementales de reelaboración tafonómica en ammonites de la Cordillera Ibérica. Acta Geológica Hispánica: 105-116.
Fernández López S.R. (1991) - Taphonomic concepts for a theoretical biochronology. Revista Española de Paleontología, 6 (1): 37-49.
Fernández López S.R. (1995) - Taphonomie et interprétation des paléoenvironnements. In: Gayet M. & Courtinat B. (Eds.) - First European Palaeontological Congress, Lyon 1993. Geobios, M.S. 18: 137-154.
Fernández López S.R. (2000) - Ammonite Taphocycles in Carbonate Epicontinental Platforms. GeoResearch Forum, 6: 293-300.
Fernández López S.R. (2007) - Ammonoid taphonomy, palaeoenvironments and sequence stratigraphy at the Bajocian/Bathonian boundary on the Bas Auran area (Subalpine Basin, SE France). Lethaia, 40: 377-391.
Forel M.B. & Grădinaru E. (2021) - A unique diversity hotspot for Polycopidae (Ostracoda) in the Triassic of North Dobrogea. Historical Biology, 34(6): 995-1018. https://doi.org/10.1080/ 08912963.2021.1959577
Gaetani M., Jacobshagen V., Nicora A., Kauffmann G., Tselepidis V., Fantini Sestini N., Mertmann D. & Skourtsis-Coroneou V. (1992) - The Early-Middle Triassic boundary at Chios (Greece). Rivista Italiana di Paleontologia e Stratigrafia, 98(2): 181-204.
Galfetti T., Bucher H., Brayard A., Hochuli P.A., Weissert H., Kuang G.D., Atudorei V. & Guex J. (2007) - Late Early Triassic climate change: insights from carbonate carbon isotopes, sedimentary evolution and ammonoid paleobiogeography. Palaeogeography, Palaeoclimatology, Palaeoecology, 243 (3–4): 394–411. https://doi .org /10 .1016 /j .palaeo .2006 .08 .014.
Galfetti T., Bucher H., Martini R., Hochuli P.A., Weissert H., Crasquin-Soleau S., Brayard A., Goudemand N., Bruehwiler T. & Kuang G.D. (2008) - Evolution of Early Triassic outer platform paleoenvironments in the Nanpanjiang Basin (South China) and their significance for the biotic recovery. Sedimentary Geology, 204(1–2): 36–60. https://doi .org /10 .1016 /j .sedgeo .2007.12 .008.
Gamsjäger B. (1982) - Systematyk und phylogenie der Obertriadischen Cladiscitidae Zittel, 1884 (Ammonoidea). Österreiche Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Klasse, Denkschriften, 122: 1-72.
Germani D. (1997) - New data on ammonoids and biostratigraphy of the classical spathian Kçira sections (Lower Triassic, Albania). Rivista Italiana di Paleontologia e Stratigrafia, 103(3): 267-292.
Golding M.L. (2021) - Early Anisian (Middle Triassic) conodonts from Romania and China, with comments on their role in the recognition and correlation of the base of the Anisian. Journal of Earth Science, 32(3): 573-591.
Golding M.L. (2023) - New conodont data from the Olenekian-Anisian Boundary interval at the GSSP Candidate Section at Deşli Caira, Romania. 4th International Congress in Stratigraphy, Strati 2023, Book of Abstracts: 205.
Goudemand N., Orchard M.J., Bucher H. & Jenks J. (2012) - The elusive origin of Chiosella timorensis (Conodont Triassic). Geobios, 45: 199-207.
Grădinaru E. (1995) - Mesozoic rocks in North Dobrogea: an overview. In: Field Guidebook, Central and North Dobrogea, Romania, October 1-4, 1995. IGCP Project No. 369, Comparative Evolution of PeriTethyan Rift Basins: 17-28.
Grădinaru E. (2000) - Introduction to the Triassic Geology of North Dobrogea Orogen - an overview of the Triassic System in the Tulcea Unit and the ammonoid biostratigraphy. In: Grădinaru E. (Ed.) - Workshop on the Lower- Middle Triassic (Olenekian-Anisian) boundary, 7-10 June 2000, Tulcea, Romania, Conference and Field Trip. Field Trip Guide: 5-37. Romanian Academy & University of Bucharest, Faculty of Geology and Geophysics, Bucharest.
Grădinaru E. (2003) - Ammonoid biostratigraphy around Olenekian-Anisian boundary in Deşli Caira (Romania) - a GSSP candidate. In: Brack P., Schlager W. & Stefani M. (Eds.) - Triassic geochronology and cyclostratigraphy a field symposium, Abstracts: 37, St. Christina/Val Gardena.
Grădinaru E. (2005) - Triassic-Jurassic boundary events in North Dobrogea (Romania) as recorded in basinal marine environments. 5th Field Workshop of IGCP 458, Transdanubian Range (Hungary) and Northern Calcareous Alps (Austria): 5-10 September 2005, Poster.
Grădinaru E. (2022) - The Olenekian-Anisian /Early-Middle Triassic boundary, and assessment of the potential of conodonts for chronostratigraphic calibration of Triassic timescale. Acta Palaeontologica Romaniae, 18(2): 3-51. https://doi.org/10.35463/ j.apr.2022.02.01.
Grădinaru E. & Gaetani M. (2019) - Upper Spathian to Bithynian (Lower to Middle Triassic) brachiopods from North Dobrogea (Romania). Rivista Italiana di Paleontologia e Stratigrafia, 125(1): 91-123. 10.13130/2039-4942/11182
Grădinaru E. & Ivanova D. (2002) - Foraminiferal biostratigraphy across the Olenekian-Anisian boundary in the Deşli Caira section (Northern Dobrogea, Romania): preliminary results. STS/IGCP 467 Field Meeting, Veszprém, Hungary, 5–8 September 2002: 10-11.
Grădinaru E. & Sobolev E.S. (2006) - Ammonoid and nautiloid biostratigraphy around the Olenekian-Anisian boundary in the Tethyan Triassic of North Dobrogea (Romania): correlation with the Boreal Triassic. In: Nakrem H.A. & Mørk A. (Eds.) - Boreal Triassic 2006, Longyearbyen, Svalbard, 16-19 August 2006. NGF Abstracts and Proceedings of the Geological Society of Norway, 3: 56-58.
Grãdinaru E., Kozur H.W., Nicora A. & Orchard M.J. (2006) - The Chiosella timorensis lineage and correlation of the ammonoids and conodonts around the base of the Anisian in the GSSP candidate at Deşli Caira (North Dobrogea, Romania). Albertiana, 34: 34-38.
Grădinaru E., Orchard M. J., Nicora A., Gallet Y., Besse J., Krystyn L., Sobolev E. S., Atudorei N.-V. & Ivanova D. (2007) - The Global Boundary Stratotype Section and point (GSSP) for the base of the Anisian stage: Deşli Caira Hill, North Dobrogea, Romania. Albertiana, 36: 54-71.
Guex J., Hungerbühler A., Jenks J.F., Taylor D.G. & Bucher H. (2005) - Dix-huit nouveaux genres d’ammonites du Spathien (Trias inférieur) de l’0uest américain (Idaho, Nevada, Utah et Californie): Note préliminaire. Bulletin de Géologie Lausanne, 362: 1-32.
Guex J., Hungerbühler A., Jenks J.F., O’Dogherty L., Atudorei V., Taylor D.G., Bucher H. & Bartolini A. (2010) - Spathian (Lower Triassic) ammonoids from western USA (Idaho, California, Utah and Nevada). Mémoires de Géologie (Lausanne), 49: 1-211.
Hauer F.R. (1892) - Beiträge zur kenntniss der Cephalopoden aus der Trias von Bosnien. 1. Neue Funde aus dem Muschelkalk von Han Bulog bei Sarajevo. Denkschriften der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Klasse, 59: 251-296.
He G., Wang Y. & Chen G. (1986) - Early and Middle Triassic Cephalopods of Mt. Burhan Budai, Central Qinghai. In: Carboniferous and Triassic strata and fossils from the Southern Slope on Mt. Burhan Budai, Qinghai, China, 171-274 [in Chinese].
Hedberg H. (Ed.) (1976) - International stratigraphic guide. v. of 200 pp. John Wiley & Sons, New York.
Hoffmann R., Lemanis R.E., Falkenberg J., Schneider S., Wesendonk H. & Zachow S. (2018) - Integrating 2D and 3D shell morphology to disentangle the palaeobiology of ammonoids: a virtual approach. Palaeontology, 61(1): 89-104.
Horacek M., & Grădinaru E. (2023) - The Spathian-Anisian (Lower-Middle Triassic) Boundary in the candidate GSSP section at Deşli Caira, Romania: Review of existing data, new findings, and comparison with other candidates. Palaeogeography, Palaeoclimatology, Palaeoecology, 613: 111407.
Hounslow M.W., Szurlies M., Muttoni G. & Nawrocki J. (2007) - The magnetostratigraphy of the Olenekian-Anisian boundary and a proposal to define the base of the Anisian using a magnetozone datum. Albertiana, 36: 72-77.
Hounslow M.W. & Muttoni G. (2010) - The geomagnetic polarity timescale for the Triassic: linkage to stage boundary definitions. In: Lucas S.G. (Ed.) - The Triassic Timescale. Geological Society, London, Special Publications, 334: 61-102.
Ishibashi T. & Nakazawa K. (1989) - Triassic Ammonites from West Spitsbergen. Memoirs from the Faculty of Science Kyushu University, Ser. D, Geology, 26(3): 216-241.
Jenks J., Guex J., Hungerbühler A., Taylor D.G. & Bucher H. (2013) - Ammonoid biostratigraphy of the early Spathian Columbites parisianus Zone (Early Triassic) at Bear Lake Hot Springs, Idaho. In: Tanner L.H., Spielmann J.A. & Lucas S.G. (Eds.) - The Triassic System. New Mexico Museum of Natural History and Science, Bulletin 61: 268-283.
Jenks J.F., Monnet C., Balini M., Brayard A. & Meier M. (2015) - Biostratigraphy of Triassic ammonoids. In: Klug, C., Korn, D., De Baets, K., Kruta, I. & Mapes, R. H. (Eds) - Ammonoid Paleobiology: From macroevolution to paleogeography. Topics in Geobiology, 44: 329-388 (Springer) Dordrecht.
Jenkins H.C. (1971) - The genesis of condensed sequences in the Tethyan Jurassic. Lethaia, 4(3): 327-352.
Kittl E. (1908) - Beiträge zur Kenntnis der Triasbildungen der Nordöstlichen Dobrudscha. Denkschriften der Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Klasse, 81: 447-532.
Konstantinov A.G. (2008) - Triassic Ammonoids of Northeast Asia: Diversity and Evolutionary Stages. Stratigraphy and Geological Correlation, 16(5): 490-502.
Konstantinov A.G. & Klets T.V. (2009) - Stage boundaries of the Triassic in Northeast Asia. Stratigraphy and Geological Correlation, 17: 173-191.
Konstantinov A.G., Sobolev E.S. & Yadrenkin A.V. (2007) - Detailed biostratigraphy of Triassic deposits in the Lena lower reaches (northern Yakutia). Russian Geology and Geophysics, 48(9): 721-736.
Krystyn L., Balini M. & Nicora A. (2004) - Lower and Middle Triassic stage and substage boundaries in Spiti. Albertiana, 30: 39-52.
Kummel B. (1969) - Ammonoids of the late Scythian (Lower Triassic). Bulletin of the Museum of Comparative Zoology, Harvard University, 137(3): 311-702.
Kummel B. (1973) - Aspects of the Lower Triassic (Scythian) stage. In: Logan A. and Hills L.V (Eds.) - The Permian and Triassic Systems and their mutual boundary. Canadian Society of Petroleum Geologists Memoir, 2: 557-571.
Landman N.H., Johnson R.O., Garb M.P., Edwards L.E. & Kyte F.T. (2007) - Cephalopods from the Cretaceous/Tertiary boundary interval on the Atlantic coastal plain, with a description of the highest ammonite zones in North America. Part III. Manasquan River Basin, Monmouth County, New Jersey. Bulletin of the American Museum of Natural History, 2007(303): 1-122.
Lehrmann D.J. (1999) - Early Triassic calcimicrobial mounds and biostromes of the Nanpanjiang basin, south China. Geology, 27(4): 359-362.
Lehrmann D.J., Wei J. & Enos P. (1998) - Controls on facies architecture of a large Triassic carbonate platform: the Great Bank of Guizhou, Nanpanjiang Basin, South China. Journal of Sedimentary Research, 68(2): 311-326.
Lehrmann D.J., Ramezani J., Bowring S.A., Martin M.W., Montgomery P., Enos P., Payne J.L., Orchard M.J., Hongmei W. & Jiayong W. (2006) - Timing of recovery from the end-Permian extinction: Geochronologic and biostratigraphic constraints from south China. Geology, 34: 1053-1056.
Lehrmann D.J., Stepchinski L., Altiner D., Orchard M.J., Montgomery P., Enos P., Ellwood B.B., Bowring S.A., Ramezani J., Wang H.M., Wei J.Y., Yu M.Y., Griffiths J.D., Minzoni M., Schaal E.K., Li X.W., Meyer K.M. & Payne J.L. (2015) - An integrated biostratigraphy (conodonts and foraminifers) and chronostratigraphy (paleomagnetic reversals, magnetic susceptibility, elemental chemistry, carbon isotopes and geochronology) for the Permian-Upper Triassic strata of Guandao section, Nanpanjiang Basin, South China. Journal of Asian Earth Sciences, 108: 117-135.
Li M.S., Huang C.J., Hinnov L.A., Chen W.Z., Ogg J.G., Tian W. (2018) - Astrochronology of the Anisian Stage (Middle Triassic) at the Guandao reference section, South China. Earth and Planetary Sciences Letters, 482: 591-606.
Li M.S., Ogg J.G., Zhang Y., Huang C.J., Hinnov L.A., Chen Z.Q., Zou Z.Y. (2016) - Astronomical tuning of the end-Permian extinction and the Early Triassic Epoch of South China and Germany. Earth and Planetary Sciences Letters, 441: 10-25. https://doi .org /10 .1016 /j .epsl .2016 .02 .017.
Lucas S.G. (2023) - Imprecision and instability of the Phanerozoic chronostratigraphic scale: A solution. Evolving Earth, 1: 100011.
Maeda H. & Seilacher A. (1996) - Ammonoid taphonomy. In: Landman N.H., Tanabe K. & Davis R.A. (Eds.) - Ammonoid paleobiology, Topics in Geobiology, 13: 543-578. Boston, MA: Springer US.
Martini R., Zaninetti L., Villeneuve M., Cornée J.-J., Krystyn L., Cirilli S., De Wever P., Dumitrica P. & Harsolumakso A. (2000) - Triassic pelagic deposits of Timor: palaeogeographic and sea-level implications. Palaeogeography, Palaeoclimatology, Palaeoecology, 160: 123-151.
Martire L., Pavia G., Pochettino M. & Cecca F. (2000) - The Middle-Upper Jurassic of Montagna Grande (Trapani): Age, Facies, and Depositional Geometries. Memorie della Società Geologica Italiana, 55: 219-225.
Meço S. (2010) - Litho-biostratigraphy and the conodonts of Palaeozoic/Triassic deposits in Albania. Palaeontographica Abteilung A, 290(4-6): 131-197.
Mertmann D. & Jacobshagen V. (2003) - Upper Olenekian (Spathian) ammonoids from Chios (Lower Triassic, Greece): taxonomy and stratigraphic position. Rivista Italiana di Paleontologia e Stratigrafia, 109(3): 417-447.
Meyer K.M., Yu M.Y., Jost A.B., Kelley B.M. & Payne J.L. (2011) - δ13C evidence that high primary productivity delayed recovery from end-Permian mass extinction. Earth and Planetary Science Letters, 302 (3–4):378–384. https://doi .org /10 .1016 /j .epsl .2010 .12 .033.
Mirăuţă E. (1974) - Über die Conodontenfauna des oberen Werfens des tieferen Anis der nördlichen Dobrudscha/Rumänien. Geologica et Paleontologica, 8: 149-158.
Mirăuţă E. (2000) - Conodont biostratigraphy in the Deşli Caira section. In: Grădinaru E. (Ed.) - Workshop on the Lower- Middle Triassic (Olenekian-Anisian) boundary, 7-10 June 2000, Tulcea, Romania, Conference and Field Trip. Field Trip Guide: 81-84. Romanian Academy & University of Bucharest, Faculty of Geology and Geophysics, Bucharest.
Mirăuţă E. & Gheorghian D. (1978) - Étude microfaunique des formations triasiques (transylvaines, bucoviniennes et getiques) des Carpates Orientales. Dări de seamă ale Şedinţelor, Institutul de Geologie şi Geofizică, 64(3): 109-162.
Mirăuţă E., Gheorghian D. & Bădiceanu M. (1993) - Données biostratigraphiques sur la Formation de Cataloi (Dobrogea de Nord, Roumanie). Romanian Journal of Stratigraphy, 75: 21-27.
Mojsisovics E.v. (1882) - Die Cephalopoden der mediterranen Triasprovinz. Abhandlungen der kaiserlich-königlichen Geologischen Reichsanstalt, 10: 1-322.
Mojsisovics E.v. (1888) - Über einige japanische Trias-Fossilien. Beiträge zur Paläontologie Österreich-Ungarns und des Orients, 7(2): 163-178.
Mojsisovics E.v. (1893) - Die Cephalopoden der Hallstätter Kalke. Abhandlungen der kaiserlich-königlichen Geologischen Reichsanstalt, 6(2):1-835.
Mojsisovics E.v. (1902) - Die Cephalopoden der Hallstätter Kalke. Abhandlungen der kaiserlich-königlichen Geologischen Reichsanstalt, 6(1) Supplement: 175-356.
Monnet C., Bucher H., Brayard A. & Jenks J.F. (2013) - Globacrochordiceras gen. nov. (Acrochordiceratidae, late Early Triassic) and its significance for stress-induced evolutionary jumps in ammonoid lineages (cephalopods). Fossil Record, 16 (2): 197-215.
Monnet C., Bucher H., Guex J. & Wasmer M. (2012) - Large-scale evolutionary trends of Acrochordiceratidae Arthaber, 1911 (Ammonoidea, Middle Triassic) and the Cope’s rule. Palaeontology, 55(1): 87-107.
Monnet C., Bucher H., Wasmer M. & Guex J. (2010) - Revision of the genus Acrochordiceras Hyatt, 1877 (Ammonoidea, Middle Triassic): morphology, biometry, biostratigraphy and intra-specific variability. Palaeontology, 53(5): 961-996.
Murgoci G. (1914) - Cercetări geologice în Dobrogea nordică, cu privire specială asupra Paleozoicului şi tectonicei. Anuarul Institutului Geologic al României, 5: 308-620.
Muttoni G., Kent D.V. & Gaetani M. (1994) - The base of the Anisian. A candidate Global Stratotype Section and Point from Chios Island (Greece). Albertiana, 13: 37-43.
Muttoni G., Kent D.V. & Gaetani M. (1995) - Magnetostratigraphy of a Lower-Middle Triassic boundary section from Chios (Greece). Physics of the Earth and Planetary Interiors, 92: 245-260.
Muttoni G., Kent D.V., Meço S., Nicora A., Gaetani M., Balini M., Germani D. & Rettori R. (1996) - Magnetobiostratigraphy of the Spathian to Anisian (Lower to Middle Triassic) Kçira section, Albania. Geophysical Journal International, 127: 503-514.
Muttoni G., Nicora A., Balini M., Katz M., Schaller M., Kent D.V., Maron M., Meço S., Rettori R., Doda V. & Nazaj S. (2019) - A candidate GSSP for the baseof the Anisian from Kçira, Albania. Albertiana, 45: 39-49.
Neumann N. & Schumann D. (1974) - Zur Fossilerhaltung, besonders der Goniatiten, in roten Knollenkalken vom “Ammonitico Rosso”-Typ. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen, 145: 153-182.
Nicora A. (1977) - Lower Anisian platform-conodonts from the Tethys and Nevada: taxonomic and stratigraphic revision. Palaeontographica, A, 157: 88-102.
Nikishin A.M., Ziegler P.A., Panov D.L., Nazarevich B.P., Brunet M.F., Stephenson R.A., Bolotov S.N., Korotaev M.V. & Tikhomirov P.L. (2001) - Mesozoic and Cainozoic evolution of the Scythian Platform-Black Sea-Caucasus domain, In: Ziegler P.A., Cavazza W., Robertson A.H.F. & Crasquin-Soleau S. (Eds.) - Peri-Tethys Memoir 6: Peri-Tethyan Rift/Wrench Basins and Passive Margins. Mémoires du Muséum National d’Histoire Naturelle, 186: 295-346.
Noetling F. (1880) - Die Entwickelung der Trias in Niederschlesien. Zeitschrift der Deutschen Geologischen Gesellschaft, 32: 300-349.
Nogami Y. (1968) - Trias-Conodonten von Timor, Malaysien und Japan (Paleontological Study of Portuguese Timor, 5). Memoirs of the Faculty of Science, Kyoto University, Series of Geology and Mineralogy, 34: 115-136.
Nopcsa F. (1906) - Neues aus Nordalbanien. Centralblatt für Mineralogie, Geologie und Paläontologie, 1906: 65-66.
Orchard M.J., Grădinaru E. & Nicora A. (2007a) - A summary of the conodont succession around the Olenekian-Anisian boundary at Deşli Caira, North Dobrogea, Romania. In: Lucas S.G. & Spielmann J.A. (Eds.) - The Global Triassic. New Mexico Museum of Natural History and Science Bulletin, 41: 341-346.
Orchard M.J., Lehrmann D.J., Jiayong W., Hingmei W. & Taylor H.J. (2007b) - Conodonts from the Olenekian-Anisian boundary beds, Guandao, Guizhou Province, China. In: Lucas S.G. & Spielmann J.A. (Eds.) - The Global Triassic. New Mexico Museum of Natural History and Science Bulletin, 41: 347-354.
Ovtcharova M., Bucher H., Schaltegger U., Galfetti T., Brayard A. & Guex J. (2006) - New Early to Middle Triassic U–Pb ages from South China: calibration with ammonoid biochronozones and implications for the timing of the Triassic biotic recovery. Earth and Planetary Science Letters, 243(3-4): 463-475.
Ovtcharova M., Goudemand N., Hammer Ø., Guodun K., Cordey F., Galfetti T., Schaltegger U. & Bucher H. (2015) - Developing a strategy for accurate definition of a geological boundary through radio-isotopic and biochronological dating: the Early–Middle Triassic boundary (South China). Earth-Science Reviews, 146: 65-76.
Page K. N. (2004) - The protection of Jurassic sites and fossils: challenges for global Jurassic science (including a proposed statement on the conservation of palaeontological heritage and stratotypes). Rivista Italiana di Paleontologia e Stratigrafia, 110(1): 373-380.
Payne J.L., Lehrmann D.J., Christensen S., Wei J. & Knoll A.H. (2006a) - Environmental and biological controls on the initiation and growth of a Middle Triassic (Anisian) reef complex on the Great Bank of Guizhou, Guizhou Province, China. Palaios, 21: 325-343.
Payne J.L., Lehrmann D.J., Wei J. & Knoll A.H. (2006b) - The Pattern and Timing of Biotic Recovery from the End- Permian Extinction on the Great Bank of Guizhou, Guizhou Province, China. Palaios, 21: 63-85.
Payne J.L., Lehrmann D.J., Wei J.,Orchard M.J., Schrag D.P. & Knoll A.H. (2004) - Large Perturbations of the Carbon Cycle During Recovery from the End-Permian Extinction. Science, 305: 506-509.
Pia J. (1930) - Grundbegriffe der stratigraphie. V. of 252 pp., Franz Deuticke Verlag, Wien.
Popa L., Panaiotu C.E. & Grădinaru E. (2014) - An early Middle Anisian (Middle Triassic) Tubiphytes and cement crusts-dominated reef from North Dobrogea (Romania): facies, depositional environment and diagenesis. Acta Geologica Polonica, 64(2): 189-206. 10.2478/agp-2014-0011
Popov Yu.N. (1961) - Triassic ammonoids of northeast U.S.S.R. Transaction, Scientific Research Institute for Geology of the Arctic (NIIGA), 79: 1-179 [in Russian].
Remane J., Bassett M.G., Cowie J.W., Gohrbandt K.H., Lane H.R., Michelsen O. & Naiwen W. (1996) - Revised guidelines for the establishment of global chronostratigraphic standards by the International Commission on Stratigraphy-ICS. Episodes, 19: 77-81.
Ryan D.R., Witts J.D., & Landman N.H. (2020) - Palaeoecological analysis of a methane seep deposit from the Upper Cretaceous (Maastrichtian) of the US Western Interior. Lethaia, 54(2): 185-203.
Săndulescu M. & Visarion M. (2000) - Crustal structure and evolution of the Carpathian-Western Black Sea areas. First Break, 18: 103-108.
Săndulescu M. (1984) - Geotectonics of Romania. Editura Tehnică, Bucharest, 336 pp. [in Romanian].
Săndulescu M. (1994) - Overview on Romanian Geology. In ALCAPA II Field Guidebook, South Carpathians and Apuseni Mountains, Romania, Oct. 14-22, 1994. Romanian Journal of Tectonics and Regional Geology, 75 (2): 3-15.
Săndulescu M. (1995) - Dobrogea within the Carpathian Foreland. In: Sãndulescu M., Grădinaru E. (Eds.) - IGCP Project No. 369, Comparative Evolution of PeriTethyan Rift Basins. Central and North Dobrogea, Romania, October 1-4, 1995. Field Guidebook: 1-4. Geological Institute of Romania & University of Bucharest, Faculty of Geology and Geophysics, Bucharest.
Scotese C.R. (2021) - An Atlas of Phanerozoic Paleogeographic Maps: The Seas Come In and the Seas Go Out. Annual Review of Earth Planetary Sciences, 49:679–728. https://doi.org/10.1146/annurev-earth-081320-064052.
Sebe O.-G., Crasquin S. & Grădinaru E. (2013) - Early and Middle Anisian deep-water ostracods (Crustacea) from North Dobrogea (Romania). Revue de Paléobiologie, 32: 509-529.
Seghedi A. (2001) - The North Dobrogea orogenic belt (Romania): a review. In: Ziegler P.A., Cavazza W., Robertson A.F.H. & Crasquin-Soleau S. (Eds.) - Peri-Tethys Memoir 6: Peri-Tethyan Rift /Wrench Basins and Passive Margins. Mémoires du Muséum national d’Histoire naturelle, 186: 237-257.
Seilacher A., Andalib F., Dietl G. & Gocht H. (1976) - Preservational history of compressed Jurassic ammonites from Southern Germany. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen, 152(3): 307-356.
Sengör A.M.C. (1984) - The Cimmeride Orogenic System and the Tectonics of Eurasia, Geological Society of America Special Paper, 195: 1-82.
Shevyrev A.A. (1968) - Triassic ammonoids of southern U.S.S.R. Trudy Paleontologicheskogo instituta Akademii nauk SSSR, 119: 1-272 [in Russian].
Shevyrev A.A. (1986) - Triassic ammonoids. Trudy Paleontologicheskogo instituta Akademii nauk SSSR, 217: 1-184 pp. [in Russian].
Shevyrev A.A. (1990) - Ammonoids and chronostratigraphy of the Triassic. Nauka, 179 pp. [in Russian].
Shevyrev A.A. (1995) - Triassic ammonites of northwestern Caucasus. Nauka, 174 pp. Moscow. [in Russian].
Shevyrev A.A. (1996) - Triassic Stratigraphy of the Northern Caucasus Based on Ammonoids. Stratigraphy and Geological Correlation, 4(2): 114-131.
Shimizu S. (1930) - On some Anisic ammonites from the Hollandites beds of the Kitakami Mountainland. Science report of the Tohoku Imperial University, 2nd series, Geology 14 (1): 63-74.
Simionescu J. (1910) - Studii geologice si paleontologice din Dobrogea. III. Fauna tirasică dela Deşli-Caïra. Academia Română Publicaţiunile Fondului Vasile Adamachi: 465-493.
Simionescu J. (1911) - Studii geologice si paleontologice din Dobrogea. V. Fauna tirasică inferioară din Dobrogea. Academia Română Publicaţiunile Fondului Vasile Adamachi, 63-77.
Smith J.P. (1914) - The Middle Triassic Invertebrate Faunas of North America. United States Geolological Survey Professional Paper, 83: 1-254.
Song H.J., Wignall P.B., Tong J.N., Song H.Y., Chen J., Chu D.L., Tian L., Luo M., Zong K.Q., Chen Y.L., Lai X.L., Zhang K.X. & Wang H.M. (2015) - Integrated Sr isotope variations and global environmental changes through the Late Permian to early Late Triassic. Earth and Planetary Science Letters, 424: 140-147. https://doi .org /10 .1016 /j .epsl .2015 .05 .035.
Sun Y.D., Joachimski M.M., Wignall P.B., Yan C.B., Chen Y.L., Jiang H.S., Wang L.N. & Lai X.L. (2012) - Lethally hot temperatures during the Early Triassic greenhouse. Science, 338 (6105): 366-370. https://doi .org /10 .1126 /science .1224126.
Toula F. (1896) - Eine Muschelkalkfauna am Golfe von Ismid in Kleinasien. Beiträge zur Paläontologie Österreich-Ungarns und des Orients, 10: 153-186.
Tozer E.T. (1967) - A standard for Triassic time. Bulletin of the Geological Survey of Canada, 156: 1-103.
Tozer E.T. (1971) - Triassic time and ammonoids: Problems and proposals. Canadian Journal of Earth Sciences, 8(8): 989-1031, 1611.
Tozer E.T. (1972) - Triassic Ammonoids and Daonella from the Nakhlak Group, Anarak Region, Central Iran. Geological Survey of Iran, Report, 28: 29-39.
Tozer E.T. (1981a) - Triassic Ammonoidea: Classification, Evolution and Relationship, with Permian and Jurassic Forms. In: House M.R. & Senior J.R. (Eds.) - The Ammonoidea. The Systematic Association special volume, 18: 65-100, Academic Press.
Tozer E.T. (1981b) - Triassic Ammonoidea: Geographic and Stratigraphic Distribution. In: House M.R. & Senior J.R. (Eds.) - The Ammonoidea. The Systematic Association special volume, 18: 397-432, Academic Press.
Tozer E.T. (1994) - Canadian Triassic ammonoid faunas. Geological Survey of Canada Bulletin, 467: 1-663.
Vaziri S.H. (2011) - A review on Late Scythian to Middle Anisian Ammonoids from the Alam Formation in Nakhlak area, Central Iran. Journal of Sciences, Islamic Azad University, 21(81, Geology): 201-212.
Vidakovic F., Samarija R., Sremac J. & Japundzic D. (2023) - Sidelined seachells: reappraisal of the Middle Triassic ammonoids of Sambor and Zumberak Mts. (North-western Croatia) and their systematics and biostratigraphic implications. Rivista Italiana di Paleontologia e Stratigrafia, 129: 477-550.
Visarion M., Săndulescu M., Roşca V., Stănică D. & Atanasiu L. (1990) - La Dobrogea dans le cadre de l’avant pays carpatique. Revue Roumaine de Géophysique, 34: 55-65.
Vörös A., Konrad G. & Sebe K. (2022) - Middle Triassic (Anisian) Cephalopods from the Mecsek Mountains, Hungary. Rivista Italiana di Paleontologia e Stratigrafia, 128(3): 695-717.
Wang Y. (1985) - Remarks on the Scythian-Anisian boundary. Rivista Italiana di Paleontologia e Stratigrafia, 90(4): 515-544.
Wanner J. (1932) - Anisische Monophylliten von Timor. Neues Jahrbuch für Mineralogie, Geologie und Paläontologie Abhandlungen, 67 Abt. B: 279–286.
Warrington G. (2003) - Minutes of joint Business Meeting of the STS and IGCP Project 467, Vancouver, Canada, 27 May 2003. Albertiana, 28: 3-5.
Weitschat W. & Dagys A.S. (1989) - Triassic biostratigraphy of Svalbard and a comparison with NE-Siberia. Mitteilungen aus dem Geologische-Paläontologischen Institut der Universität Hamburg, 68: 179-213.
Welter O.A. (1914) - Die obertriadischen Ammoniten und Nautiliden von Timor. Paläontologie von Timor, 1: 1-258.
Welter O.A. (1915) - Die Ammoniten und Nautiliden der ladinischen und anisischen Trias von Timor. Paläontologie von Timor, 5: 71-136.
Welter O.A. (1922) - Die Ammoniten der unteren Trias von Timor. Paläontologie von Timor, 11: 83-154.
Wendt J. (1973) - Cephalopod accumulation in the Middle Triassic Hallstatt-Limestone of Jugoslavia and Greece. Neues Jahrbuch für Geologie und Paläontologie Monatshefte, 1973, (4): 189-206.
Yan C., Jiang H., Lai X., Sun Y., Yang B., & Wang L. (2015) - The relationship between the “Green-Bean Rock” layers and conodont Chiosella timorensis and implications on defining the Early-Middle Triassic boundary in the Nanpanjiang Basin, South China. Journal of Earth Science, 26: 236-245.
Zakharov Y.D. (1968) - Biostratigraphy and ammonoids of the Lower Triassic of southern Primorye. Academy of Sciences U.S.S.R., Siberian Branch, Far East Filial Geological Institute, 1-175. [in Russian].
Zakharov Y. D. & Abnavi N. M. (2013) - The ammonoid recovery after the end-Permian mass extinction: Evidence from the Iran-Transcaucasia area, Siberia, Primorye, and Kazakhstan. Acta Palaeontologica Polonica, 58(1): 127-147.
Zakharov Y.D., Popov A.M. & Buryi G.I. (2004) - Triassic Ammonoid Succession in South Primorye: 3. Late Olenekian – Early Anisian Zones (Neocolumbites insignis, Subcolumbites multiformis, Ussuriphyllites amurensis and Leiophyllites pradyumna). Albertiana, 31: 54-64.
Zakharov Y.D., Popov A.M. & Buryi G.I. (2005a) - Triassic Ammonoid Succession in South Primorye: 4. Late Olenekian – Early Anisian zones of the Atlasov Cape Section. Albertiana, 32: 36-39.
Zakharov Y.D., Popov A.M. & Buryi G.I. (2005b) - Unique marine Olenekian-Anisian boundary section from South Primorye, Russian far east. Journal of China University of Geosciences, 16(3): 219-230.
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