Euselachian Sharks (Elasmobranchii, Chondrichthyes) from the Middle and Late Permian of European Russia
A. P. Ivanov, E. S. Kovalenko, М. М. Мурашев, К. М. Подурец
Abstract
A. P. Ivanov, E. S. Kovalenko, М. М. Мурашев, К. М. Подурец
Abstract
Abstract A new genus and species euselachian Desinia radiata Ivanov gen. et sp. nov. from the Middle and Upper Permian deposits of European part of Russia is described based on material included the numerous teeth and small fragment of skull with jaw cartilages, teeth and scales. The new taxon is closely related with the genus Sphenacanthus and attributed to the family Sphenacanthidae. The holotype of other euselachian Xenosynechodus egloni is redescribed.
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Abstract A new genus and species euselachian Desinia radiata Ivanov gen. et sp. nov. from the Middle and Upper Permian deposits of European part of Russia is described based on material included the numerous teeth and small fragment of skull with jaw cartilages, teeth and scales. The new taxon is closely related with the genus Sphenacanthus and attributed to the family Sphenacanthidae. The holotype of other euselachian Xenosynechodus egloni is redescribed.
Key concepts: Chondrichthyes, Elasmobranchii, Permian, Paleontology, Geology, Anatomy, Fishery, Biology