- Calsoyasuchus valliceps
- Tyloski, Rowe, Ketcham and Colbert, 2002
- Meaning of generic name
- to honor Dr. Kyril Calsoyas+ Greek soukhos "crocodile".
- Meaning of specific name
- from combination of valles (L. valley), and cephale, (Gr. head), in reference to the deep median valley present on the dorsal surface of nasals and frontal bones.
[cephale is NOT shortened -ceps, which comes from latin "capere" = take, like what you take in a stride or in a bite]
- Skull length: 38 cm, Length: [not given]
- Holotype (TMM 43631-1): partial skull
- Age and Distribution
- Horizon: Kayenta Formation. Early Jurassic (Sinemurian-Plienbaschian).
Locality: Gold Spring drainage basin, Adeii Eechii Cliffs, Navajo Nation, Coconino County, Arizona.
- Archosauromorpha Crurotarsi Paracrocodylomorpha Mesoeucrocodylia Goniopholididae
- Further Reading
- R. S. Tykoski, T. B. Rowe, R. A. Ketcham and M. W. Colbert. 2002. Calsoyasuchus valliceps, a new crocodyliform from the Early Jurassic Kayenta Formation of Arizona. Journal of Vertebrate Paleontology 22(3):593-611
- What about "croc"? [This is of course a creationist comment, see image on the original palaeocritti site]
Tuesday, 3 December 2013
Calsoyasuchus from the Early Jurassic of Arizona is the earliest known member of the Goniopholidae. The goniopholids are an extinct group of crocodylomorphs closely related to the modern crocodilians.