MARINE FISHES (CHONDRICHTHYES, HOLOCEPHALI, ACTINOPTERYGII) FROM  THE UPPER CRETACEOUS (CAMPANIAN) RYBUSHKA FORMATION NEAR  BELOE OZERO, SARATOV OBLAST, RUSSIA

JUN A.  EBERSOLE; SERGEY V.  SOLONIN; DAVID J.  CICIMURRI; MAXIM S.  ARKHANGELSKY; NIKOLAY V.  MARTYNOVICH

doi:10.54103/2039-4942/16954

Authors

JUN A. EBERSOLE McWane Science Center, 200 19th Street North, Birmingham, Alabama, 35203, USA https://orcid.org/0000-0003-2382-4806
SERGEY V. SOLONIN Department of Geography, Ecology and Nature Management, Ryazan State University named for S. Yesenin, Svoboda str. 46, Ryazan, 390000, Russia https://orcid.org/0000-0002-6873-679X
DAVID J. CICIMURRI South Carolina State Museum, 301 Gervais Street, Columbia, South Carolina, 29201, USA https://orcid.org/0000-0002-4047-8290
MAXIM S. ARKHANGELSKY Department of General Geology and Minerals, Saratov State University, Astrakhanskaya str. 83, Saratov, 410012, Russia. Department of Oil and Gas, Saratov State Technical University, Politekhnicheskaya str. 77, Saratov, 410054, Russia https://orcid.org/0000-0001-5745-3885
NIKOLAY V. MARTYNOVICH The Museum of the World Ocean, Peter the Great emb. 1, Kaliningrad, 236006, Russia

DOI:

https://doi.org/10.54103/2039-4942/16954

Keywords:

Teleostei; Chimaeriformes; Batomorphi; fossil; Galeomorphi; Squalomorphi; Volga District.

Abstract

A diverse fish paleofauna occurs in the upper Campanian portion of the Rybushka Formation exposed near Saratov city in the Saratov Oblast, Russia. Twenty taxa have been identified, including two holocephalans (Ischyodus bifurcatus and Amylodon karamysh), twelve elasmobranchs (Synechodus sp., Cederstroemia sp., Cretalamna cf. C. borealis, C. cf. C. sarcoportheta, Archaeolamna kopingensis, Eostriatolamia segedini, E. venusta, Pseudocorax laevis, Squalicorax kaupi, Squalicorax morphotype 1, Squalidae indet., and Squatirhina sp.), and six teleosts (Pachyrhizodus sp., Saurocephalus lanciformis, Paralbula casei, Enchodus cf. E. dirus, E. cf. E. gladiolus, and E. petrosus). Many of these taxa are new to the Campanian fish record of Russia, and the assemblage demonstrates that there is significant taxonomic overlap between the Rybushka Formation paleofauna and that of North America.