[2] The type specimen consisted of a number of dermal scutes, a sacrum of at least five sacral vertebrae, a pelvis, a tibia and teeth.

[4] In 1933 Matley and Friedrich von Huene described some more remains collected by Barnum Brown,[2] thought to have been part of a tail club;[5] later this was shown to be a large osteoderm.

He claimed that the specimen was a chimera including titanosaurid armor, crocodile teeth and theropod hindlimb material.

[6] In 1964 Alick Walker chose the scutes as the lectotype, thus removing the teeth and the bones from the type material.

discarded the possibility the scutes were ankylosaurian, stating they were probably titanosaurian, but noted that a comparison to the osteoderms of Ceratosaurus would help in determining its affinities.