Ecteniniidae

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Ecteniniidae
Temporal range: Late Triassic, Norian
Trucidocynodon riograndensis.jpg
Life restoration of the ecteniniid Trucidocynodon riograndensis
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Order: Therapsida
Suborder: Cynodontia
Parvorder: 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 speciations towards cursoriality.[3]

Phylogeny[edit]

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

Cynodontia 

Procynosuchus




Galesaurus




Thrinaxodon




Platycraniellus


Eucynodontia

Cynognathia


Probainognathia

Lumkuia




Chiniquodon




Probainognathus



Ecteniniidae

Diegocanis



Ecteninion



Trucidocynodon



Prozostrodontia

Prozostrodon




Therioherpeton



Tritylodontidae

Oligokyphus



Tritylodon




Beinotherium



Kayentatherium






Pachygenelus



Riograndia




Brasilodon


Mammaliaformes

Adelobasileus




Sinoconodon



Morganucodon


















References[edit]

  1. ^ 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: 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.