 The first fossils of "Terrestrisuchus" were discovered by Professor K. A. Kermack and Dr. P. L. Robinson in the spring of 1952, recovered from the Pant-y-ffynon Quarry located near Cowbridhe, Glamorgan in South Wales.Their finds were presented by Kermack to the Linnean Society of London on October 8th, 1953, and was recognised belonging to a "primitive crocodile or crocodile ancestor".No osteoderms had been identified yet at the time, which Kermack regarded as representing a "missing link" between modern crocodilians and the Triassic "thecodonts".