Tapinocephalus Owen, Taurops Broom, Archaeosuchus Broom, Scapanodon Broom, Eccasaurus Broom, South Africa.
Family Deuterosauridae. Upper Permian. Deuterosaurus, Eichwald, Ural Mts.
Family Rhopalodontidae. Upper Permian. Rhopalodon, Eichwald, Ural Mts.
Family Titanosuchidae.[1] Upper Permian. Titanosuchus Owen, South Africa. "Lamiasaurus" [snout].
B. Suborder Dromasauria
About the size of a rat. Skull short; orbits large; lacrimals continuous to septomaxilla; temporal opening bounded by postorbital, squamosal, and jugal; possibly the preparietal, and probably the interparietal, present; parietal foramen large; teeth isodont, subisodont, or absent; quadratojugals obsolete or absent; vertebrae notochordal, intercentra unknown; two or three sacrals, probably twenty-eight presacrals; parasternals present; no acromion and no cleithrum; pelvis plate-like, pubic foramen large; carpus primitive, tarsus with or without a fifth tarsale; phalangeal formula 2, 3, 3, 3, 3.
Family Galechiridae. A single row of subisodont teeth.
Middle Permian. Galechirus Broom, Galesphyrus Broom, Galepus Broom, South Africa.
Family Galeopidae. Edentulous.
Middle Permian. Galeops Broom, South Africa.
Family Macroscelesauridae. Macroscelesaurus Haughton.
C. Suborder Anomodontia
From the size of a mouse to that of a tapir, vegetable or invertebrate feeders. Large temporal opening bounded by postorbital, squamosal, and jugal. Skull typically short and wide, the face short; quadrates and squamosals large; lacrimals small; quadratojugals small or obsolete.[2] Preparietal usually present, in front of, or sur-
