| Measurements | ||
|---|---|---|
| Femur, | least diam. of the shaft | 58 mm. |
| Femur, | diameter across the condyles | 148 mm. |
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.
Loxornis Ameghino
Loxornis Amegh., 1895, Bol. Inst. Geog. Argen., t. 15, p. 595.
Another group of bones, which we found with considerable frequency, have the same features as Pelecyornis of the Santa Cruz. Ameghino has described but the lower end of a tibio-tarsus which can be associated with these bones and to it gave the name Loxornis. I can not find much variation from Pelecyornis except that the coracoid is considerably shorter and wider, and there is a slight variation in the lower end of the tibio-tarsus. These then are the bases of the generic name.