[1] The lectotype of Procariama (MACN-8225) is a partial skeleton consisting of an incomplete skull, a pelvis, proximal and distal parts of the left femur, distal parts of the right tibiotarsus, proximal and distal parts of the right tarsometatarsus, foot bones and the nail bearing toe bones of the nearly complete left foot, and fragments of the toe bones of the right foot.

[2] The genus name was first published in 1914 by Cayetano Rovereto in Anales del Museo Nacional de Historia Natural.

[3] Reaching about 70 centimetres (2.3 ft) in height and 10 kilograms (22 lb) in body mass, Procariama was one of the smaller phorusrhacids.

This more robust build can be attributed to a slight difference in the ratio between the bones of the legs, with the thigh being comparatively shorter in Procariama.

[2] The genus is very similar to Mesembriornis and lived during the same geological period, making fossils of the two easily confused.