A new crocodylomorph (Sphagesauridae, Notosuchia) with horn-like tubercles from Brazil

Authors

  • ALEXANDER W. A. KELLNER,

    Corresponding author
    1. Departamento de Geologia e Paleontologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, s/n, Rio de Janeiro, RJ-20940-040, Brazil
      E-mail: kellner@mn.ufrj.br
    Search for more papers by this author
  • DIOGENES A. CAMPOS,

    1. Departamento Nacional de Produção Mineral, Museu de Ciências da Terra, Avenida Pasteur, 404, Urca, RJ-22290-040, Brazil
    Search for more papers by this author
  • DOUGLAS RIFF,

    1. Instituto de Biologia, Universidade Federal de Uberlândia. Campus Umuarama, Bloco 2D – sala 28. Rua Ceará, s/n, Uberlândia, MG-38400-902, Brazil
    Search for more papers by this author
  • MARCO BRANDALISE DE ANDRADE

    1. Department of Earth Sciences, Faculty of Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol BS8 1RJ, UK
    Search for more papers by this author

E-mail: kellner@mn.ufrj.br

Abstract

A new species of a bizarre notosuchian mesoeucrocodylian is reported here. Caryonosuchus pricei gen. et sp. nov. was found in the outcrops of the Adamantina Formation (Campanian–Masstrichtian) in São Paulo State, Brazil, and shows a typical sphagesaurid dentition: strong and short teeth, obliquely implanted with the crown of the upper teeth showing a rounded anteriolabial margin and a strong compressed posteriolingual edge developed into a carina, ornamented by developed ridges and denticles. Amongst the diagnostic features of the new taxon are the presence of horn-like tubercles on the premaxilla and maxilla, never reported in this group before. The occurrence of C. pricei increases the diversity of sphagesaurids and confirms that all members of this clade, only recorded in Late Cretaceous deposits from Brazil so far, share the same dentition.

© 2011 The Linnean Society of London, Zoological Journal of the Linnean Society, 2011, 163, S57–S65.

Ancillary