Caenagnathasia (lat.) ("The last jaw from Asia") is a genus of a small theropod - an oviraptorosaurus of the cenagnathid family from late Cretaceous Uzbekistan .
| † Caenagnathasia | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Reconstructed view | ||||||||||||||||||
| Scientific classification | ||||||||||||||||||
| ||||||||||||||||||
| Latin name | ||||||||||||||||||
| Caenagnathasia Currie et al. 1994 | ||||||||||||||||||
| Single view | ||||||||||||||||||
|
Opening
The type species Caenagnathasia martinsoni was named and described in 1994 by Philip Curry , Stephen Godfrey and Lev Nesov. The generic name is a combination of the name of the family with Asia, where fossils come from. The species name is given in honor of the famous paleontologist Herbert Genrikhovich Martinson (1911-1997). The entire holotype consists of fragments of the lower jaw. At the location of the find, another fragment of the jaw was found, attributed to the same species. Both individuals were adults [1] . In 2015, a new sample was described [2] .
Description
Caenagnathasia is the smallest known oviraptorosaurus and one of the smallest non-avian dinosaurs. Fragments of the jaw are only a few centimeters in length. The total length of the skull is 7.6 cm. In 2010, Gregory S. Paul estimated the length of the animal at 0.61 m and weight at 1.4 kg. Recent studies suggest that this was one of the most primitive members of cenagnathids.
The cladogram below shows the position of Caenagnathasia martinsoni on the common phylogenetic tree of coenagnathids [3] :
| Caenagnathoidea |
| |||||||||||||||||||||||||||||||||||||||||||||
Notes
- ↑ PJ Currie, SJ Godfrey, and L. Nessov, 1994, "New caenagnathid (Dinosauria, Theropoda) specimens from the Upper Cretaceous of North America and Asia", Canadian Journal of Earth Sciences 30 (10-11): 2255-2272
- ↑ Sues H.-D., Averianov A. New material of Caenagnathasia martinsoni (Dinosauria: Theropoda: Oviraptorosauria) from the Bissekty Formation (Upper Cretaceous: Turonian) of Uzbekistan // Cretaceous Research: journal. - 2015. - Vol. 54 . - P. 50-59 . - DOI : 10.1016 / j.cretres.2014.12.001 .
- ↑ Lamanna MC, Sues HD, Schachner ER, Lyson TR A New Large-Bodied Oviraptorosaurian Theropod Dinosaur from the Latest Cretaceous of Western North America (English) // PLOS One : journal. - Public Library of Science , 2014. - Vol. 9 , no. 3 . - P. e92022 . - DOI : 10.1371 / journal.pone.0092022 .