Ecteninion
genus of mammals (fossil)
Ecteninion is an extinct genus of meat-eating cynodonts that lived during the Late Triassic (Carnian) in South America. The type species Ecteninion lunensis was named by R.N. Martinez, C.L. May, and C.A. Forster in 1996. The holotype of E. lunensis is PVSJ 422, it's known from a nearly complete skull of about 11 centimetres (4.3 in) in length. It was found in the Cancha de Bochas Member of the Ischigualasto Formation in the Ischigualasto-Villa Unión Basin in northwestern Argentina. It has been interpreted as a basal eucynodont. The holotype is in the collection of the Universidad Nacional de San Juan.
Body size
Although specimens larger than the holotype are present in the Ischigualasto Formation, they are notably smaller than Trucidocynodon from the Santa Maria Formation.
Phylogeny
Ecteninion in a cladogram after Hopson & Kitching (2001):
Cladogram after Stefanello et al. (2023):
References
Further reading
Martinez et al. (1996) "A new carnivorous cynodont from the Ischigualasto formation (Late Triassic, Argentina), with comments on eucynodont phylogeny." J. Vertebr.
“Ecteninion” enters the record as genus of mammals (fossil). Crown Archives preserves that source wording while asking what Ecteninion, genus and mammals can confirm, complicate or overturn.
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“Ecteninion” is worth following because a concise public description often conceals a longer documentary argument. Here, Ecteninion, genus and mammals provides the most credible route into that argument.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated May 20, 2025. The linked authority identifier is Q5333976. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1996, 2001 and 2023.
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This entry incorporates text from “Ecteninion” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.