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Scarce ctenacanthiform sharks from the Mississippian of Austria with an analysis of Carboniferous elasmobranch diversity in response to climatic and environmental changes

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dc.contributor.author Feichtinger I.
dc.contributor.author Ivanov A.O.
dc.contributor.author Winkler V.
dc.contributor.author Dojen C.
dc.contributor.author Kindlimann R.
dc.contributor.author Kriwet J.
dc.contributor.author Pfaff C.
dc.contributor.author Schraut G.
dc.contributor.author Stumpf S.
dc.date.accessioned 2022-02-09T20:33:33Z
dc.date.available 2022-02-09T20:33:33Z
dc.date.issued 2021
dc.identifier.issn 0272-4634
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/169004
dc.description.abstract The Carboniferous is characterized by drastic climatic and environmental fluctuations, which include multiple phases of glaciation resulting in an icehouse climate. Additionally, dynamic continental reconfigurations forced the contraction of the Rheic Ocean resulting in the closure of the Rheic–Tethyan Gateway, which precluded further faunal exchanges between the North American and Eurasian marine realms. Interestingly, cartilaginous fishes seem to be relatively immune to these drastic climatic and environmental changes. The Eurasian fossil record of Paleozoic sharks is strongly biased towards intensively sampled localities from England, Ireland, Scotland, and the Russian Platform. Here we present rare dental material from the Serpukhovian (early Carboniferous) of Austria, adding new information to the paleogeographic distribution of ctenacanthiform sharks. The new material revealed the first record of the genus Saivodus in Central Europe and allowed us to recognize a new species, Cladodus gailensis sp. nov., and a remnant of fossilized cartilage. In an attempt to identify possible linkages between climatic or environmental fluctuations on shark diversity throughout the Carboniferous, we provide a synopsis of the distribution and diversity of elasmobranchs based on primary literature. This preliminary assessment at genus level indicates two pronounced events of extinction, with the first one occurring during the latest Mississippian and the second one towards the end of the Pennsylvanian. The first extinction event distinctly correlates with the known diversity decline of other marine inhabitants and the second occurred during an unstable period of multiple phases of glaciation.
dc.relation.ispartofseries Journal of Vertebrate Paleontology
dc.title Scarce ctenacanthiform sharks from the Mississippian of Austria with an analysis of Carboniferous elasmobranch diversity in response to climatic and environmental changes
dc.type Article
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS02724634-2021-SID85108424597


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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