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Title: Eutherocephalia  
Author: World Heritage Encyclopedia
Language: English
Subject: Therocephalia, Therapsida, Phthinosuchia, Eutheriodontia, Lycosuchus
Publisher: World Heritage Encyclopedia


Temporal range: Permian - Triassic
Life restoration of the eutherocephalian Moschorhinus kitchingi preying on a dicynodont
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Order: Therapsida
Suborder: Therocephalia
Clade: Scylacosauria
Infraorder: Eutherocephalia
Hopson and Barghusen, 1986

Eutherocephalia ("true beast head") is an infraorder of therocephalian therapsids. Eutherocephalians are distinguished from the lycosuchids and scylacosaurids, two early therocephalian families. While lycosuchids and scyalosaurids went extinct by the end of the Permian period, eutherocephalians survived the Permian–Triassic extinction event. The group eventually went extinct in the Middle Triassic.

The clade Eutherocephalia contains the majority of therocephalians, yet the phylogenetic relations of the groups within it remain unclear. Eutherocephalia is supported as a true clade in many phylogenetic analyses, but the placement of groups like Akidnognathidae, Hofmeyriidae, Whaitsiidae, and Baurioidea, all of which lie within Eutherocephalia, remains debated.[1]


  1. ^ Rubidge, B.S.; Sidor, C.A. (2001). "Evolutionary patterns among Permo-Triassic therapsids". Annual Review of Ecology, Evolution, and Systematics 32: 449–480.  

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