Zosuchus

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Zosuchus
Temporal range: Late Cretaceous
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Mesoeucrocodylia
Genus: Zosuchus
Pol and Norell, 2004
Species
  • Z. davidsoni Pol and Norell, 2004 (type)

Zosuchus ("Zos [Canyon] crocodile") is a genus of basal, Late Cretaceous crocodyliform from the Redbeds of Zos Canyon (Djadokhta Formation) in the Gobi Desert of Mongolia. It was discovered by expeditions organized by the American Museum of Natural History, and described by palaeontologists Diego Pol and Mark Norell.

The type species is Z. davidsoni, after Amy Davidson.

Material[edit]

Material of Z. davidsoni consists of five specimens:

  • IGM 100/1305 (holotype): isolated skull and lower jaws
  • IGM 100/1304
  • IGM 100/1306
  • IGM 100/1307
  • IGM 100/1308

Systematics[edit]

Pol & Norell (2004) found Zosuchus davidsoni to be the sister taxon of the clade (Sichuanosuchus + Shantungosuchus). These three form a basal clade of crocodyliforms joined together by the presence of a ventrally deflected posterior region of the mandibular rami.

Morphology[edit]

This genus had a very short snout.

Sources[edit]

  • Pol, D. & Norell, M. A., (2004). "A new crocodyliform from Zos Canyon, Mongolia". American Museum Novitates 3445: 1-36.