Physornis sp.?
Two phalanges of a size too small to belong to the above species represent a second smaller bird of this type, about equal in size to Phororhacus inflatus. I give a figure of one toe but would wait for more typical material before establishing a species.
Fig. 150. Proximal phalanx
of Physornis sp?—
natural size.
Fig. 151. Loxornis clivus,
lower end of tibio-tarsus,
after Ameghino—
natural size.