| Ecteninion Temporal range: Carnian
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| Model | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Clade: | Cynodontia |
| Family: | †Ecteniniidae |
| Genus: | †Ecteninion Martínez et al. 1996 |
| Type species | |
| †Ecteninion lunensis Martínez et al. 1996
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| Synonyms | |
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Ectenion (sic) Stefanello et al. 2023 | |
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. E. lunensis is 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.[1] It has been interpreted as a basal eucynodont. The holotype is in the collection of the Universidad Nacional de San Juan.
- ^ Ecteninion at Fossilworks.org