Pachyrhizodus caninus Cope, 1872 (Teleostei, Crossognathiformes) from the early Turonian of Vallecillo (Mexico)
Abstract:In this paper we report on a specimen of Pachyrhizodus caninus Cope, 1872 (Teleostei, Crossognathiformes) from the early Turonian of Vallecillo (North-eastern Mexico). P. caninus is considered to be a typical faunal element of the Western Interior Seaway, however, its occurrence in Vallecillo shows that this species was not restricted to the Seaway realm. The described specimen is the stratigraphically oldest record of this species. Comparisons with the European type species Pachyrhizodus basalis (Dixon, 1850) show that both P. caninus and P. basalis are valid species. The occurrence of a Western Interior faunal element in the assemblage of Vallecillo underlines the importance of this locality in understanding the palaeobiogeographical relations of the Western Tethys and adjacent realms in the late Cretaceous.
Document Type: Research Article
Publication date: November 1, 2010
More about this publication?
- Neues Jahrbuch für Geologie und Paläontologie continuously publishes current original contributions from all fields of geology, ever since its foundation in 1807. All published contributions are in the English language.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- ingentaconnect is not responsible for the content or availability of external websites