SPATHIAN (LOWER TRIASSIC) CONODONTS FROM THE TIROLITES CASSIANUS BEDS IN PALEOTETHYS-ISSUED NORTH DOBROGEA OROGEN (ROMANIA)

Authors

  • TEA KOLAR-JURKOVŠEK Geological Survey of Slovenia image/svg+xml https://orcid.org/0000-0001-7534-3241
  • YAN-LONG CHEN State Key Laboratory of Continental Dynamics, Shaanxi Key Laboratory of Early Life and Environments and Department of Geology, Northwest University, Xi’an, 710069, China
  • EUGEN GRĂDINARU Universitatea din Bucureşti, Facultatea de Geologie şi Geofizică, Bd. Bălcescu Nicolae 1, RO-010041, Bucureşti, Romania
  • BOGDAN JURKOVŠEK Kamnica 27, 1262 Dol pri Ljubljani, Slovenia.

DOI:

https://doi.org/10.54103/2039-4942/17656

Keywords:

Biostratigraphy; Olenekian; Tulcea Veche Quarry; Romania

Abstract

The paper documents a conodont fauna from Lower Triassic deposits of Paleotethys-issued North Dobrogea Orogen. The studied strata exposed in the Tulcea Veche Quarry are characterized by the presence of diversified molluscs, including the ammonoid Tirolites cassianus (Quenstedt) and the bivalve Crittendenia decidens (Bittner). The site also represents the type locality of the coelacanth fish Dobrogeria aegyssensis Cavin & Grădinaru. The recovered conodont fauna is marked by Icriospathodus crassatus (Orchard), Neospathodus robustispinus Zhao & Orchard, Novispathodus abruptus (Orchard), Nv. brochus (Orchard), Nv. aff. brochus (Orchard), Tr. ex gr. homeri (Bender), Tr. hungaricus (Kozur & Mostler), Tr. ex gr. hungaricus (Kozur & Mostler), Tr. symmetricus (Orchard), Tr. aff. symmetricus (Orchard), and Triassospathodus sp. that is correlated with the Tr. symmetricus Zone.

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References

Aljinović D., Horacek M., Krystyn L., Richoz S., Kolar-Jurkovšek T., Smirčić D. & Jurkovšek B. (2018) - Western Tethyan Epeiric Ramp setting in the Early Triassic: an example from the Central Dinarides (Croatia). Journal of Earth Science, 29: 806-823. https://doi.org/10.1007/s12583-018-0787-3.

Arthaber G. von. (1906) - Die alpine Trias des Mediterran-Gebietes. In: Lethaea geognostica II. Teil, Mesozoicum, Band I: 223-475. Verlag der E. Schweizerbart’schen Verlagshandlung (E. Nägele), Stuttgart.

Baltreş A. (2003) - Unităţile litostratigrafice Mezozoice, Pre-Cenomaniene din Dobrogea de Nord. Partea I. Studii şi cercetări de geologie, 48: 49-90.

Banks C.J. & Robinson A.G. (1997) - Mesozoic Strike-Slip Back-Arc Basins of the Western Black Sea Region. In: Robinson A.G. (Ed.) - Regional and petroleum geology of the Black Sea and surrounding region. AAPG Mem., 68: 53-61.

Cavin L. & Grădinaru E. (2014) - Dobrogeria aegyssensis, a new early Spathian (Early Triassic) coelacanth from North Dobrogea (Romania). Acta Geologica Polonica, 64(2): 161-187. DOI: 10.2478/agp-2014-0010

Chen Y.L., Twitchett R.J., Jiang H.S., Richoz S., Lai X.L., Yan C.B., Sun Y.D., Liu X.D. & Wang L.N. (2013) - Size variation of conodonts during the Smithian-Spathian (EarlyTriassic) global warming event. Geology, 41(8): 823-826.

Chen Y.L., Jiang H.S., Lai X.L., Yan C.B., Richoz S., Liu X.D. & Wang L.N. (2015) - Early Triassic conodonts of Jiarong, Nanpanjiang Basin, southern Guizhou Province, South China. Journal of Asian Earth Sciences, 105: 104-121.

Chen. Y. L., Kolar-Jurkovšek T., Jurkovšek B., Aljinović D. & Richoz S. (2016) - Early Triassic conodonts and carbonate carbon isotope record of the Idrija-Žiri area, Slovenia. Palaeogeography, Palaeoclimatology, Palaeoecology, 444: 84-100.

Chen Y.L., Richoz S., Krystyn L. & Zhang Z. (2019) - Quantitative stratigraphic correlation of Tethyan conodonts across the Smithian-Spathian (Early Triassic) extinction event. Earth Science Review, 195: 37-51. https://doi.org/10.1016/j.earscirev.2019.03.004

Chen Y.L., Joachimski M.M., Richoz S., Krystyn L., Aljinović D., Smirčić D., Kolar-Jurkovšek T., Lai X. & Zhang Z. (2021) - Smithian and Spathian (Early Triassic) conodonts from Oman and Croatia and their depth habitat revealed. Global and Planetary Change, 196: 103362. https://doi.org/10.1016/j.gloplacha.2020.103362

Clark D.L., Paull R.K., Solien M.A. & Morgan W.A. (1979) - Triassic Conodont Biostratigraphy in the Great Basin. Brigham Young University Geology Studies 36(3): 179-183.

Dürkoop A., Richter D.K. & Stritzke R. (1986) - Facies, age and correlation of Triassic Red Limestones (“Hallstatt Type”) from Epidavros, Adhami and Hydra (Greece). Facies, 14: 105-150.

Epstein A.G., Epstein J.B. & Harris L.D. (1977) - Conodont Color Alteration- an Index to Organic Metamorphism. U. S. Geologicla Survey Professional Paper, 995: 1-27.

Gaetani M., Jacobshagen, V., Nicora A., Kauffmann G., Tselepidis V., Fantini Sestini N., Mertmanann D. & Skourtsis-Coroneou V. (1992) - The Early-Middle Triassic boundary at Chios (Greece). Rivista Italiana di Paleontologia e Stratigrafia, 98: 181-204.

Gaetani M., Meço S., Rettori R., Henderson C.M. & Tulone A. (2015) - The Permian and Triassic in the Albanian Alps. Acta Geologica Polonica, 65(3): 271-295. DOI: 10.1515/agp-2015-0012

Grădinaru E. (1988) - Jurassic sedimentary rocks and bimodal volcanics of the Cârjelari-Camena Outcrop Belt: evidence for a transtensile regime of the Peceneaga-Camena Fault. Studii si cercetari de Geologie, Geofizica, Geografie, Seria Geologie. 33: 97-121.

Grădinaru E. (1995) - Mesozoic rocks in North Dobrogea: an overview. In: Săndulescu M. & Grădinaru E. (Eds) - Field Guidebook, Central and North Dobrogea, Romania, October 1-4, 1995. IGCP Project No. 369: 17-26. Comparative Evolution of Peri-Tethyan Rift Basins. Geological Institute of Romania, Bucharest.

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, Bucharest.

Grădinaru 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.

Kittl E. (1908) - Beiträge zur Kenntnis der Triasbildungen der nordöstlichen Dobrudscha. Denkschriften der kaiserlichen Akademie der Wissenschaften Wien. Mathematisch - naturwissenschaftliche Klasse, 81: 447-532.

Koike T. (1981) - Biostratigraphy of Triassic conodonts in Japan. Science Reports of Yokohama National University, Section 2, 28: 25-42.

Koike T. (1992) - Morphological variation in Spathian conodonts Spathoicriodus collinsoni (Solien) from the Taho Limestone, Japan. In: Ishizaki K. & Saito T. (Eds) - Centenary of Japanese Micropaleontology: 355-364. Terra Scientific Publishing Company, Tokyo.

Kolar-Jurkovšek T., Chen Y.L., Jurkovšek B., Poljak M., Aljinović D. & Richoz S. (2017) - Conodont biostratigraphy of the Early Triassic in eastern Slovenia. Paleontological Journal, 51(7): 687-703.

Kolar-Jurkovšek T. & Jurkovšek B. (2015) - Conodont zonation of Lower Triassic strata of Slovenia. Geologija, 58(2): 155-174. http://dx.doi.org/10.5474/geologija.2015.012

Kolar-Jurkovšek T. & Jurkovšek B. (2019) - Konodonti Slovenije / Conodonts of Slovenia. Geološki zavod Slovenije, Ljubljana, 260 pp.

Kolar-Jurkovšek T., Jurkovšek B., Vuks V.J., Hrvatović H., Aljinović D., Šarić Ć. & Skopljak F. (2014) - The Lower Triassic platy limestone in the Jajce area (Bosnia and Herzegovina). Geologija, 57(2):105-118. doi:10.5474/geologija.2014.009

Kolar-Jurkovšek T., Vuks J.V., Aljinović D., Hautmann M., Kaim A. & Jurkovšek B. (2013) - Olenekian (Early Triassic) fossil assemblage from Eastern Julian Alps (Slovenia). Annales Societatis Geologorum Poloniae 83: 213-227.

Kolar-Jurkovšek T., Hrvatović H., Aljinović D., Nestell G.P., Jurkovšek B. & Skopljak F. (2021) - Permian-Triassic biofacies of the Teočak section, Bosnia and Herzegovina. Global and Planetary Change, 200: 103458. https://doi.org/10.1016/j.gloplacha.2021.103458

Kozur H. (2003) - Integrated ammonoid, conodont and radiolarian zonation of the Triassic and some remarks to Stage/Substage subdivision and the numeric age of the Triassic stages. Albertiana, 28: 57-74.

Kozur H. & Mostler H. (1970) - Neue Conodonten aus der Trias. Berichte des Naturwissenschaftlich-medizinischen Vereins in Innsbruck, 58: 429-464.

Krahl J., Kauffmann G., Kozur H., Richter D., Foerster O. & Heinritzi F. (1983) - Neue Daten zur Biostratigraphie und zur tektonischen Lagerung der Phyllit-Gruppe und der Trypali-Gruppe auf den Insel Kreta (Griechenland). Geologische Rundschau, 72: 1147-1166.

Krystyn L. (2005) - A revised Lower Triassic intercalibrated ammonoid-conodont time scale of the eastern Tethys Realm based on Himalayan data. Albertiana, 33: 53-54.

Lindström M. (1970) - A suprageneric taxonomy of the conodonts. Lethaia, 3: 427-445.

Lucas S.G. (2013) - A new Triassic Timescale. In: Tanner L.H., Spielmann J.A. & Lucas S.G. (Eds) - The Triassic System: 366-374. New Mexico Museum of Natural History Bulletins, 61.

Lucas S.G. & Orchard M.J. (2007) - Triassic lithostratigraphy and biostratigraphy north of Currie, Elko County, Nevada. New Mexico Museum of Natural History Bulletins, 40: 119-126.

Lucas S.G. & Tanner L.H. (2014) - The Triassic Timescale 2013. In: Rocha R. et al. (Eds) - STRATI 2013: 19-22. Springer Geology.

Lyu Z., Orchard M.J., Golding M.L., Henderson C.M., Chen Z.-Q., Zhang L., Han C., Wu S., Huang Y., Zhao L., Bhat G.M. & Baud A. (2021) - Lower Triassic conodont biostratigraphy of the Guryul Ravine section, Kashmir. Global and Planetary Change, 207: 103671.

Maekawa T. & Komatsu T. (2014) - Conodont succession. In: Shigeta Y., Komatsu T., Maekawa T. & Tran H.D. (Eds) - Olenekian (Early Triassic) Stratigraphy and Fossil Assemblages in Northeastern Vietnam, vol. 45: 51-54. National Museum of Nature and Science Monographs, Tokyo, Japan.

Maekawa T., Komatsu T., Koike T. (2018) - Early Triassic conodonts from the Tahogawa Member of the Taho Formation, Ehime Prefecture, Southwest Japan. Paleontological Research, supplement to vol. 22: 1-62. DOI: 10.2517/2018PR001

Meço S. (1999) - Conodont biostratigraphy of Triassic pelagic strata, Albania. Rivista Italiana di Paleontologia e Stratigrafia, 105(2): 251-266.

Mietto P., Fratoni R.P. & Perri M.C. (1991) - Spathian and Aegean conodonts from the Capelluzzo Calcarenites of the Monte Facito Group (Lagonegro Sequence, southern Apennines). Memorie di Scienze Geologiche, Universita di Padova, 43: 305-317.

Mirăuţă O. (1966) - Dévonien et Trias des collines de Mahmudia (Dobrogea septentrionale). Dări de Seamă ale Şedinţelor, Institutul Geologic al României, 52(2): 115-134.

Mirăuţă E. (1974) - Über die Conodontenfaunen des oberen Werfens und des tieferen Anis der nördlichen Dobrudscha/Rumänien. Geology and Palaeontology 8: 149-158.

Mirăuţă E. (1982) - Biostratigraphy of the Triassic deposits in the Somova-Sarica Hill zone (North Dobrogea) with special regard on the eruption age. Dări de seamă, Institutul de Geologie şi Geofizică, 67(4): 63-78.

Mirăuţă E. & Iordan M. (1982) - New Triassic fossiliferous localities in the Tulcea Zone (North Dobrogea). Dări de seamă, Institutul de Geologie şi Geofizică, 66: 15-22.

Mirăuţă E., Iordan M. & Gheorghian D. (1984) - New biostratigraphic data on the Triassic from the Somova-Sarica Hill area (Tulcea Zone, North Dobrogea). Dări de seamă ale Şedinţelor, Institutul de Geologie şi Geofizică, 68: 35-48.

Mosher L.C. (1968) - Triassic conodonts from western North America and Europe and their correlation. Journal of Paleontology, 42: 895-946.

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.

Okay A.I., Şengör A.M.C. & Görür N. (1994) - Kinematic history of the opening of the Black Sea and its effect on the surrounding regions. Geology, 22: 267-270.

Orchard M.J. (1995) - Taxonomy and correlation of Lower Triassic (Spathian) segminate conodonts from Oman and revision of some species of Neospathodus. Journal of Paleontology, 69(1): 110-122.

Orchard M.J. (2005) - Multielement conodont apparatuses of Triassic Gondolelloidea. Special Papers in Palaeontology, 73: 1-29.

Orchard M.J. (2022) - North American Spathian (Upper Olenekian, Lower Triassic) neogondolellin conodonts. Papers in Palaeontology, 8(1): e1409. doi: 10.1002/ssp2.1409

Orchard M J., Grădinaru E. & Nicora A. (2007) - 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: 341-346. New Mexico Museum of Natural History Bulletins, 41.

Péron S., Bourquin S., Fluteau F., Guillocheau F. (2005) - Paleoenvironment reconstructions and climate simulations of the Early Triassic: Impact of the water and sediment supply on the preservation of fluvial systems. Geodinamica Acta, 18(6): 431-446.

Perri M.C. (1986) - A Spathian conodont fauna from the Cencenighe Member of Werfen Formation (Scythian), southeastern Dolomites, Italy. Bollettino della Società Paleontologica Italiana, 24: 23-28.

Perri M.C. & Andraghetti M. (1987) - Permian-Triassic boundary and Early Triassic conodonts from the southern Alps, Italy. Rivista Italiana di Paleontologia e Stratigrafia, 93: 291-328.

Săndulescu M. (1995) - Dobrogea within the Carpathian Foreland. In: Săndulescu M. & Grădinaru E. (Eds.) - IGCP Project No. 369: 1-4. Comparative Evolution of Peri Tethyan Rift Basins. Central and North Dobrogea, Romania, October 1-4, 1995. Field Guidebook. Geological Institute of Romania & University of Bucharest, Bucharest.

Şengör A.M.C. (1984) - The Cimmeride orogenic system and the tectonics of Eurasia. Geological Society of America Special Papers 195: 1-82.

Simionescu I. (1908) - Über das Vorkommen der Werfener Schichten in Dobrogea (Rumänien). Verhandlungen der Kaiserlich-Königlichen Geologischen Reichsanstalt 7: 159-161.

Simionescu I. (1910) - Studii geologice şi paleontologice din Dobrogea. III. Fauna triasică dela Deşli-Caıra. La faune triasique de Deşli-Caıra (Dobrogea). Academia Română, publicaţiunile fondului Vasile Adamachi, 26: 495-524. [in Romanian, French summary].

Simionescu I. (1911) - Studii geologice şi paleontologice din Dobrogea. V. Fauna triasică inferioarâ din Dobrogea (La faune du Trias inferieur de Dobrogea). Academia Română, publicaţiunile fondului Vasile Adamachi, 5(29): 63-79. [in Romanian, French summary]

Simionescu I. (1913) - Studii geologice şi paleontologice din Dobrogea. VI. Fauna amoniţilor triasici dela Hagighiol. Les ammonites triasiques de Hagighiol (Dobrogea). Academia Română, publicaţiunile fondului Vasile Adamachi, 34: 271-371. [in Romanian, French summary]

Simionescu I. (1925) - Păturile cu Daonella în Dobrogea (Les couches à Daonella de Dobrogea). Academia Română, publicaţiunile fondului Vasile Adamachi, 43:1-10 [in Romanian, French summary].

Simionescu I. (1927) - Aperçu géologique sur la Dobrogea. In: Guide des excursions, Cultura Naţională: 353-378. Association pour l’avancement de la géologie des Carpates. Deuxième réunion en Roumanie. Bucarest.

Steuber T. (1992) - Condonten-Stratigraphie triadischer Ablagerungen am Golf von Korinth (Griechenland) und von der Halbinsel Karaburun (Türkei). Neues Jahrbuch für Geologie und Paläontologie, 3: 171-191.

Sun Y.D., Richoz S., Krystyn L., Grasby S.E., Chen Y.L., Banerjee D. & Joachimski M.M. (2021) - Integrated bio-chemostratigraphy of lower and Middle Triassic marine successions at Spiti in the Indian Himalaya: Implications for the early Triassic nutrient crisis. Glob. Planet. Chan., 196: 103363.

Sweet W.C., Mosher L.C., Clark D.L., Collinson J.W. & Hasenmueller W.H. (1971) - Conodont biostratigraphy of the Triassic. In: Sweet W.C. & Bergström S.M. (Eds) - Symposium on Conodont Biostratigraphy: 441-465. Geological Society of America Memoir, 127.

Tian C.R., Dai J. & Tian S.G. (1983) - Triassic Conodonts. In: Chengdu Institute of Geology and Mineral Resources (Eds) - Paleontological Atlas of Southwest China, Volume of microfossils: 345-398. pls. 79-100. Geological Publishing House, Beijing.

Tozer E.T. (1984) - The Trias and its Ammonoids, The Evolution of a Time Scale. Geological Survey of Canada, Miscellaneous Report 35, 170 pp.

Zhao L.S., Orchard M.J., Tong J.N., Sun Z.M., Zuo J.X., Zhang S.X. & Yun A.L. (2007) - Lower Triassic conodont sequence in Chaohu, Anhui Province, China and its global correlation. Palaeogeography, Palaeoclimatology, Palaeoecology, 252: 24-38.

Zhao L.S., Tong J.N., Zhang S.X. & Sun Z.M. (2008) - An Update of Conodonts in the Induan-Olenekian Boundary Strata at West Pingdingshan Section, Chaohu, Anhui Province. Journal of China University of Geosciences, 19(3): 207-216.

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2023-01-24

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Received 2022-04-04
Accepted 2022-11-27
Published 2023-01-24