Tecovas Formation

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title: "Tecovas Formation" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["carnian-stage", "triassic-geology-of-texas"] description: "Geological formation in Texas" topic_path: "science/earth-science" source: "https://en.wikipedia.org/wiki/Tecovas_Formation" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Geological formation in Texas ::

::data[format=table title="Infobox rockunit"]

Field	Value
name	Tecovas Formation
type	Geological formation
age	Upper Triassic,

| | period | Norian | | region | Texas, Crosby County | | country | United States | | unitof | Dockum Group | | underlies | Trujillo Formation | | overlies | Santa Rosa Formation and Camp Springs Formation | ::

| name = Tecovas Formation | image = | caption = | type = Geological formation | age = Upper Triassic,

| period = Norian | prilithology = | otherlithology = | namedfor = | namedby = | region = Texas, Crosby County | country = United States | coordinates = | unitof = Dockum Group | subunits = | underlies = Trujillo Formation | overlies = Santa Rosa Formation and Camp Springs Formation | thickness = | extent = | area = | map = | map_caption =

The Tecovas Formation is a geological formation in the Texas panhandle and eastern New Mexico. It is one of several formations encompassed by the Late Triassic Dockum Group.

The lower unit of the Cooper Canyon Formation in Garza County to the south is stratigraphically equivalent to the Tecovas Formation. It is also contiguous with the Garita Creek Formation of New Mexico, as well as partially to the Santa Rosa Formation.

Vertebrate fauna

::data[format=table]

Vertebrates of the Tecovas Formation	Taxa	Presence	Notes	Images
Postosuchus		A rauisuchian
::

References

References

1. Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Triassic, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 518–521. {{ISBN. 0-520-24209-2.
2. (2008). "Lithostratigraphy, chemostratigraphy, and vertebrate biostratigraphy of the Dockum Group (Upper Triassic), of southern Garza County, West Texas". Texas Tech University.
3. (2013). "A taxonomic and biostratigraphic re-evaluation of the Post Quarry vertebrate assemblage from the Cooper Canyon Formation (Dockum Group, Upper Triassic) of southern Garza County, western Texas". Earth and Environmental Science Transactions of the Royal Society of Edinburgh.
4. Sarıgül, V.. (2016). "New basal dinosauromorph records from the Dockum Group of Texas, USA". Palaeontologia Electronica.
5. (1993). "''Adelobasileus'' from the upper Triassic of west Texas: the oldest mammal". Journal of Vertebrate Paleontology.
6. Christian F. Kammerer, John J. Flynn, Lovasoa Ranivoharimanana and André R. Wyss (2012). "Ontogeny in the Malagasy Traversodontid Dadadon isaloi and a Reconsideration of its Phylogenetic Relationships". Fieldiana Life and Earth Sciences. 5: 112–125. doi:10.3158/2158-5520-5.1.112.
7. Martz, J. W.; Small, B. J. (2006). "Tecovasuchus chatterjeei, a new aetosaur (Archosauria: Stagonolepididae) from the Tecovas Formation (Carnian, Upper Triassic) of Texas". Journal of Vertebrate Paleontology. 26 (2): 308–320. doi:10.1671/0272-4634(2006)26[308:tcanaa]2.0.co;2.
8. Volkan Sarıgül; Federico Agnolín; Sankar Chatterjee (2018). "Description of a multitaxic bone assemblage from the Upper Triassic Post Quarry of Texas (Dockum group), including a new small basal dinosauriform taxon" (PDF). Historia Natural, Tercera Serie. 8 (1): 5–24.

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::