Among the largest carnivorous synapsids was the therapsid "Anteosaurus", which was long, and weighed . The cynognathians are the longest-lived non-mammalian therapsid clade extending from Triassic to the Late Triassic. Titanophoneus ("titanic murderer") is an extinct genus of carnivorous dinocephalian therapsid from the Middle Permian. "Brithopus" was later considered a possible estemmenosuchid, a type of herbivorous tapinocephalian therapsid. Gorgonopsians are the most morphologically homogeneous of the major therapsid clades. Leogorgon ("Leo's gorgon") is a genus of large-bodied therapsid from the Late Permian of Russia. Nochnitsa is a genus of gorgonopsian therapsid from the Kotelnich red beds of Permian Russia. The primitive therapsid "" was discovered by and named after his tutor Yefremov. "Deuterosaurus", like all its therapsid cousins, probably laid eggs. Biarmosuchians were the last of the six major therapsid lineages to be recognized. As a therapsid, "Diictodon" shared many features with modern-day mammals. The name of the biozone refers to "Cynognathus crateronotus", a large and carnivorous cynodont therapsid.