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Najash rionegrina
Taxonomy
Najash rionegrina was named by Apestiguía and Zaher (2006). Its type specimen is MPCA 390-397, 400, a partial skeleton, and it is a 3D body fossil. Its type locality is La Buitrera (Hoyada de los esfenodontes), which is in a Cenomanian crevasse splay sandstone in the Candeleros Formation of Argentina. It is the type species of Najash.
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Najash rionegrina Apestiguía and Zaher p. 1037 figs. 1-2 |
| 2013 | Najash rionegrina Palci et al. |
| 2013 | Najash rionegrina Vasile et al. |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Najash rionegrina Apestiguía and Zaher 2006
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. Apestiguía and H. Zaher 2006 | "A snake with a strongly concave ventral surface of the parasphenoid rostrum, forming a deep and straight gutter; two sacral vertebrae present; single large parazygantral foramen on each side of neural arch; proximal caudal vertebrae with blunt haemapophyses; robust femora with a large trocanter (pg. 1037" |
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum, uc = unranked clade | |||||
| References: Kiessling 2004, Carroll 1988 | |||||
Age range: Early/Lower Cenomanian or 100.50000 to 93.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | Argentina (Río Negro) | Najash rionegrina (type locality: 225915) |