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Chondrichthyan spines from the Famennian (Upper Devonian) of Russia

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dc.contributor.author Lebedev O.A.
dc.contributor.author Ivanov A.O.
dc.contributor.author Linkevich V.V.
dc.date.accessioned 2021-02-24T20:31:28Z
dc.date.available 2021-02-24T20:31:28Z
dc.date.issued 2020
dc.identifier.issn 0001-5709
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/160694
dc.description.abstract © 2020 Polish Academy of Sciences. All rights reserved. Lebedev, O.A., Ivanov, A.O. and Linkevich, V.V. 2020. Chondrichthyan spines from the Famennian (Upper Devonian) of Russia. Acta Geologica Polonica, 70 (3), 339–362. Warszawa. Very rare chondrichthyan spines from the Famennian (Upper Devonian) of European Russia are referred here to ctenacanthiforms, euselachians and a chondrichthyan group of uncertain systematic position. Ctenacanthus Agassiz, 1837 is recorded from the lower and middle Famennian of the central and north-western parts of the area. Sculptospina makhlaevi Lebedev gen. et sp. nov. originates from the lower Famennian of the Lipetsk Region. The holotype of ‘Ctenacanthus’ jaekeli Gross, 1933 and a new specimen from the upper Famennian of the South Urals are shown to belong to the same taxon, which is transferred to Acondylacanthus St. John and Worthen, 1875. New specimens of Tuberospina nataliae Lebedev, 1995 from the upper Famennian of Central Russia are described in detail. The newly presented material increases our knowledge of the composition of Famennian marine assemblages from the East European Platform. It is suggested that these assemblages may be classified as chondrichthyan-dominated and dipnoan-dominated. Hypothetically, after the end-Devonian Hangenberg extinction event, which affected numerous secondary consumers in vertebrate communities, some chondrichthyan groups could have encroached to take advantage of previously occupied ecological niches. Ctenacanthus, as well as Acondylacanthus and Amelacanthus survived the end-Devonian mass extinction to continue into the Carboniferous.
dc.relation.ispartofseries Acta Geologica Polonica
dc.subject Chondrichthyes
dc.subject Ctenacanthiformes
dc.subject Devonian
dc.subject Euselachii
dc.subject Famennian
dc.subject Fin spines
dc.subject Russia
dc.title Chondrichthyan spines from the Famennian (Upper Devonian) of Russia
dc.type Article
dc.relation.ispartofseries-issue 3
dc.relation.ispartofseries-volume 70
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 339
dc.source.id SCOPUS00015709-2020-70-3-SID85095592902


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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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