Euparkeria capensis (Broom 1913, SAM 5867) Early Triassic, ~247 mya, 60 centimeter length, was derived from a sister to the SAM 4067A specimen (see below), which is a distinct not yet named genus previously referred to Euparkeria. Both were derived from the larger BPI/i/4016 specimen of Proterosuchus and the FMNH UC 1528 specimen of Youngoides. Euparkeriids preceded erythrosuchids like Garjainia and other archosauriforms like Riojasuchus, Ornithosuchus and Vjushkovia.
Distinct form Youngoides, Euparkeria had a taller snout and larger naris, shifting dorsally on the skull. Like other basal archosauriforms, Euparkeria had a larger naris, and an antorbital fenestra. The lateral temporal fenestra was not as long because the squamosal and quadratojugal bowed into it. The teeth were larger and fewer. The palate was wider at mid-rostrum, losing the pinched-in appearance. The palatal processes of the maxilla contacted the vomers.
As in other archosauriforms, the cervicals were more robust and the tail was longer.
The pectoral girdle was sightly smaller. The pubis dipped below the ventral rim of the remaining pelvis and the ischium extended posteriorly, as in Garjainia, but the pubis and ischium retained a long contact. Metatarsal 4 was reduced, subequal to mt3. Pedal digit IV was shorter than III and digit V was reduced to a vestige. The pedal digits were shorter than the metatarsals.
Euparkeria is a much smaller and more agile proterosuchid. It nests at the base of the next clade of euarchosauriformes that gave rise to larger ornithosuchids, rauisuchids and their descendants, including dinosaurs and crocodilians.