Sebecidae Explained

Sebecidae is an extinct family of prehistoric terrestrial sebecosuchian crocodylomorphs, known from the Late Cretaceous and Cenozoic of Europe and South America. They were the latest surviving group of non-crocodilian crocodylomorphs.

The oldest known member of the group is Ogresuchus furatus known from the Upper Cretaceous (Maastrichtian) Tremp Formation (Spain).[1] Other records of the group are known from the Eocene of Europe.[2] Sebecids were diverse, abundant and broadly distributed in South America (mostly in Argentina, Brazil and Bolivia) during the Cenozoic, from the Paleocene until the Middle Miocene; although it has been suggested that at least some forms could have survived until the Miocene-Pliocene boundary in Brazil.[3]

This group included many medium- and large-sized genera, from Sebecus to the giant 6adj=midNaNadj=mid Barinasuchus from the Miocene.[4]

Phylogeny

The following cladogram simplified after Diego Pol and Jaime E. Powell (2011).[5]

Notes and References

  1. Sellés . A. G. . Blanco . A. . Vila . B. . Marmi . J. . López-Soriano . F. J. . Llácer . S. . Frigola . J. . Canals . M. . Galobart . À. . 2020 . A small Cretaceous crocodyliform in a dinosaur nesting ground and the origin of sebecids . Scientific Reports . 10 . 1 . Article number 15293 . 10.1038/s41598-020-71975-y . 32943663 . 7499430 . 2020NatSR..1015293S . free .
  2. Martin . Jeremy E. . Pochat-Cottilloux . Yohan . Laurent . Yves . Perrier . Vincent . Robert . Emmanuel . Antoine . Pierre-Olivier . 2022-10-28 . Anatomy and phylogeny of an exceptionally large sebecid (Crocodylomorpha) from the middle Eocene of southern France . Journal of Vertebrate Paleontology . en . 42 . 4 . 10.1080/02724634.2023.2193828 . 2022JVPal..42E3828M . 0272-4634.
  3. Liccardo, Antonio, and Luiz Carlos Weinschütz. "Registro inédito de fósseis de vertebrados na Bacia Sedimentar de Curitiba (PR) ." Revista Brasileira de Geociências 40.3 (2010): 330-338.
  4. Book: Salias-Gismondi . R. . Antoine . P. O. . Baby . P. . Brusset . S. . Benammi . M. . Espurt . N. . de Franceschi . D. . Pujos . F. . Tejada . J. . Urbina . Middle Miocene Crocodiles From the Fitzcarrald Arch, Amazonian Peru . 2007 . Instituto Geológical y Minero de España . 978-84-7840-707-1 . 4 . May 12, 2010 . 8 . dead . https://web.archive.org/web/20090704205152/http://www.igme.es/4empsla/libro/62.pdf . July 4, 2009 .
  5. Diego Pol and Jaime E. Powell . 2011 . A new sebecid mesoeucrocodylian from the Rio Loro Formation (Palaeocene) of north-western Argentina . Zoological Journal of the Linnean Society . 163 . S7–S36 . 10.1111/j.1096-3642.2011.00714.x . free . 11336/69518 . free .

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