Paleopsilopterus itaboraiensis Alvarenga, 1985

Alvarenga, Herculano M. F. & Höfling, Elizabeth, 2003, Systematic Revision Of The Phorusrhacidae (Aves: Ralliformes), Papéis Avulsos de Zoologia 43 (4), pp. 55-91 : 84

Paleopsilopterus itaboraiensis Alvarenga, 1985

Type – Proximal portion of the right tarsometatarsus (MNRJ-4040- V) .

Hypodigm – Type; left and right tibiotarsus, proximally deformed and incomplete (Paratypes, DGM-1431- R). Hypodigm – Lectotypes; right femur distally incomplete, distal portion of the left tarsometatarsus and some associated phalanges (MACN-6939); an almost complete skeleton in an excellent state of conservation ( FM-P 14525 ) ( Figs. 30 , 31 and 32 ) .

Horizon and Locality – Upper Miocene and Lower Pliocene (Huayquerian) of Argentina: Catamarca Province: Andalgala, Corral Quemado (Belem), Chiquimil, Rio Santa Maria (Estratos Araucanos).

Measurements – Table 8 and Patterson & Kraglievich (1960).

Illustrations – Rovereto (1914).

Remarks – The similar size to that of Mesembriornis incertus ( Figs. 33F and 33G ), plus the same stratigraphic occurrence, could lead to confusion amongst the fossils of these species, which, in fact, occurred with Rovereto (1914) in his original description. See the remarks related to Mesembriornis incertus .

Figures

FIGURE 30. Procariama simplex (FM-P14525), from Corral Quemado, Argentina. Skull, A - left lateral and B - dorsal, views. Pelvis, C - right lateral, D - dorsal, and E - ventral, views.

FIGURE 31. Procariama simplex (FM-P14525), from Corral Quemado,Catamarca, Argentina.A - caudal vertebrae and pygostyle, right lateral view; B - right scapula, lateral view; C - left coracoid, dorsal view; D - right humerus, radius and ulna, lateral view.

FIGURE 32. Procariama simplex (FM-P14525), from Corral Quemado, Catamarca, Argentina. A - femurs, dorsal view; B - tibiotarsus, ventral view; C - tarsometatarsus, dorsal view. r = right; l = left

FIGURE 33. Bones of the hind limbs, of the Mesembriornithinae (A-G) and Psilopterinae (H-N). Mesembriornis milneedwardsi (MACN-5944; from Rovereto, 1914): A - right femur, dorsal view, B - left tibiotarsus, ventral view, and C - left tarsometatarsus, dorsal view. Mesembriornis milneedwardsi (MMP-S155): D - left femur, dorsal view, E - right tibiotarsus, ventral view. Mesembriornis incertus (FM-P14422): F - right tibiotarsus, ventral view, and G - right tarsometatarsus, dorsal view. Procariama simplex (FM-P14525): H - right femur, dorsal view, I - tibiotarsus, ventral view, and J - right tarsometatarsus, dorsal view. Psilopterus lemoinei (AMNH-9157 and 9257 from Sinclair & Farr, 1910): L - right femur, dorsal view, M - right tarsometatarsus, ventral view, and N - right tarsometatarsus, dorsal view.