Denazinemys
| Denazinemys Temporal range: Late Cretaceous, 74.56–73.04 Ma | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Testudines |
| Suborder: | Cryptodira |
| Family: | †Baenidae |
| Clade: | †Baenodda |
| Genus: | †Denazinemys Lucas and Sullivan, 2006 |
| Species | |
|
D. nodosa (Gilmore, 1916) | |
| Synonyms[1] | |
|
"Baena" nodosa Gilmore, 1916 | |
Denazinemys was a genus of baenodd turtle that lived in the Late Cretaceous of New Mexico. The holotype specimen, which D. nodosa was based on, USNM 8345, consists of a partial carapace and plastron. It came from the De-na-zin Member of the Kirtland Formation, and therefore, Denazinemys lived in the Kirtlandian land-vertebrate age. Many specimens other than the holotype have been assigned to Denazinemys.[1]
Distinguishing characteristics
Previously, Scabremys ornata was assigned to Denazinemys as D. ornata. Below are the features found in Denazinemys distinguishing the two genera:[1]
- a carapace that is sub-triangular with widest dimension posteriorly;
- prepleurals present and touching the first vertebrae medially;
- the first vertebrae an irregular hexagonal shape with the greatest width posteriorly, contacting anterior second vertebrae;
- extracervicals lateral to the primary cervicals, the cervicals being sub-divided;
- and carapace nodes irregular and not forming distinct ridges.
Classifiation
Denazinemys is a baenodd, along with Plesiobaena, Boremys, Scabremys, Baena and Chisternon.[1]
Below is a cladogram made by Sullivan et al. in 2013 showing the relations of Denazinemys: (note: Boremys pulchra is partly a junior synonym of Boremys grandis)[1]
| Baenidae |
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References
- 1 2 3 4 5 Sullivan, R.M.; Jasinski, S.E. & Lucas, S.G. (2013). Brinkman, D.B. et al., eds. "Morphology and Evolution of Turtles" (PDF). Vertebrate Paleobiology and Paleoanthropology: 337–339. doi:10.1007/978-94-007-4309-0_20.
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