Ecteniniidae

Ecteniniidae; Temporal range: Late Triassic, Norian PreꞒ Ꞓ O S D C P T J K Pg N
	Life restoration of the ecteniniid Trucidocynodon riograndensis
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Therapsida
Clade:	Cynodontia
Clade:	Probainognathia
Family:	†Ecteniniidae; Martínez et al., 2013
Genera
	†Diegocanis; †Ecteninion; †Trucidocynodon;

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 speciations towards cursoriality.^[3]

Phylogeny[]

Below is a cladogram from Martínez et al. (2013):^[1]

Cynodontia

Cynognathia

Lumkuia

Ecteniniidae

	Diegocanis

	Ecteninion

	Trucidocynodon

	Bienotherium

	Kayentatherium

Mammaliaformes

	Sinoconodon

	Morganucodon

References[]

^ ^a ^b ^c 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.

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[MFA13-1] . 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.

[2] 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.

[3] 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.

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Ecteniniidae Temporal range: Late Triassic, Norian PreꞒ Ꞓ O S D C P T J K Pg N

Life restoration of the ecteniniid Trucidocynodon riograndensis
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Therapsida
Clade:	Cynodontia
Clade:	Probainognathia
Family:	†Ecteniniidae Martínez et al., 2013
Genera
†Diegocanis †Ecteninion †Trucidocynodon