Psilopterus colzecus Tonni & Tambussi, 1988

Alvarenga, Herculano M. F. & Höfling, Elizabeth, 2003, Systematic Revision Of The Phorusrhacidae (Aves: Ralliformes), Papéis Avulsos de Zoologia 43 (4), pp. 55-91 : 83

Psilopterus colzecus Tonni & Tambussi, 1988

Holotype – The incomplete skeleton of an individual (MLP-76-VI-12-2) consisting of the right incomplete mandibular symphysis, humerus, radius and ulnar, the right femur, the diaphysal portion of the tibiotarsus and tarsometatarsus, and the distal portion of the left tarsometatarsus together with the repective phalanges.

Hypodigm – Only the type material.

Horizon and Site – The Upper Miocene (Chasicoan) of Argentina: Arroyo Chasicó Formation, Province of Buenos Aires; Partido de Villarino.

Diagnosis – A size similar to that of P. lemoinei , representing the most recently known form of the genus. The most outstanding differences are in details of the trochlea of the tarsometatarsus with the other congenerous forms, are pointed out by Tonni & Tambussi (1988).

Measurements – Table 8 and Tonni & Tambussi (1988).

Illustrations – Tonni & Tambussi (1988).