| Ecteniniidae Temporal range: Late Triassic,
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| Life restoration of the ecteniniid Trucidocynodon riograndensis | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Clade: | Cynodontia |
| Clade: | Probainognathia |
| Family: | †Ecteniniidae Martínez et al., 2013 |
| Genera | |
Ecteniniidae is an extinct family of probainognathian cynodonts from the Triassic of South America.[1] They are notable for their large size,[1][2] as well as for being among the first synapsids with specializations towards cursoriality.[3]
- ^ a b n. Martínez, R.; Fernandez, E.; a. Alcober, O. (2013). "A new non-mammaliaform eucynodont from the Carnian-Norian Ischigualasto Formation, Northwestern Argentina". Revista Brasileira de Paleontologia. 16 (1): 61–76. doi:10.4072/rbp.2013.1.05.
- ^ Oliveira, T.V.; Soares, M.B.; Schultz, C.L. (2010). "Trucidocynodon riograndensis gen. nov. et sp. nov. (Eucynodontia), a new cynodont from the Brazilian Upper Triassic (Santa Maria Formation)". Zootaxa. 2382: 1–71.
- ^ Téo Veiga, De Oliveira; Leandro Schultz, Cesar (2016). "Functional morphology and biomechanics of the cynodont Trucidocynodon riograndensis from the Triassic of Southern Brazil: Pectoral girdle and forelimb". Acta Palaeontologica Polonica. 61 (2): 377–386. doi:10.4202/app.00171.2015.