Kataigidodon
{{short description|Extinct genus of eucynodont cynodonts}}
{{Speciesbox
| fossil_range = Late Triassic, Norian
~{{Fossilrange|221}}
| image =
| genus = Kataigidodon
| display_parents = 2
| parent_authority = Kligman, Marsh, Sues & Sidor, 2020
| species = venetus
| authority = Kligman, Marsh, Sues & Sidor, 2020
}}
Kataigidodon ("thunderstorm tooth") is an extinct genus of eucynodont cynodont therapsid that was discovered in the Chinle Formation of Arizona.Kligman, B.T.; Marsh, A.D.; Sues, H.D.; Sidor, C.A.; 2020 "A new non-mammalian eucynodont from the Chinle Formation (Triassic: Norian), and implications for the early Mesozoic equatorial cynodont record": Biological Letters. https://doi.org/10.1098/rsbl.2020.0631{{cite news|last=Montanari|first=Shaena|date=4 November 2020|title=New fossil found in Petrified Forest is 220 million years old. Here's what it looks like|work=The Arizona Republic|url=https://www.azcentral.com/story/travel/arizona/2020/11/04/petrified-forest-new-fossil-species-early-mammal-relative/6013206002/|url-status=live|url-access=limited|archive-url=https://archive.today/20211023200840/https://www.azcentral.com/story/travel/arizona/2020/11/04/petrified-forest-new-fossil-species-early-mammal-relative/6013206002/|archive-date=23 October 2021}} It is a monotypic genus, with only type species Kataigidodon venetus known.
Description
The large mental foramen of Kataigidodon venetus is anteroposteriorly longer than it is tall.{{cite web |title=New species of ancient cynodont, 220 million years old, discovered |url=http://www.geologypage.com/2020/11/new-species-of-ancient-cynodont-220-million-years-old-discovered.html |website=GeologyPage.com |date=4 November 2020 |access-date=4 November 2020}} It opens on the lateral side of the dentary below the first and second postcanine teeth. The mental foramen is at the anterior end of a shallow lateral fossa. The large size and dimensions of this foramen are distinct from most eucynodonts, where the foramen is small and circular. It most closely resembles those of the traversodonts Boreogomphodon and Arctotraversodon. Anterior to the mental foramen on the lateral dentary surface is a scattering of numerous tiny pits, which represent immature bone grain.{{cite news |title=New species of the ancient cynodont, 220 million years old, discovered {{!}} DE24 News |url=https://www.de24.news/2020/11/new-species-of-the-ancient-cynodont-220-million-years-old-discovered.html |access-date=4 November 2020 |agency=DE24 News}}
References
{{Reflist}}
External links
- [http://www.geologypage.com/2020/11/new-species-of-ancient-cynodont-220-million-years-old-discovered.html Geology page]
{{Cynodontia|E.}}
{{Taxonbar|from=Q101242426}}
Category:Late Triassic synapsids of North America
Category:Fossil taxa described in 2020
{{Paleo-cynodont-stub}}