Eotitanosuchus olsoni (Tchudinov 1960, 35 cm juvenile skull, PIN 1758/1l) derived from a sister to Biarmosuchus, this taxon was basal to gorgonopsids, likeGorgonops and Therocephalians (including cynodonts and mammals).
The longer rostrum and double canine fangs mark Eotitanosuchus as a predator. The temporal fenestra is enlarged relative to that of Biarmosuchus.
Dinocephalia (including Sinophoneus, Deuterosaurus, Estemmenosuchus (below), Microurania, IVPP V 18119 and IVPPV 18120). Known mostly from skulls, this clade of large and robust Late Permian taxa were likely hippo-like herbivores.
Estemmenosuchus uralensis (PIN 1758/4, 4m long) was a hippo-like dinocephalian with a short tail and a bony face.
Estemmenosuchus mirabilis (PIN 1758/6) has extended jugal horns and large postfrontal horns.
Tchudinov PK 1960. Upper Permian therapsids from the Ezhovo locality (Verkhnepermskie terapsidy) ezhovskogo mestonakhozhdenip). Paleontologicheskii Zhurnal 1960(4):81-94.