Glyptatelus Ameghino
Glyptatelus Amegh., 1897, Bol. Inst. Geog. Argen., t. 18, p. 507.
The plates of the carapace are similar to those of Palaeohoplophorus, the O-figure being, however, nearer the rear of each plate, and the number of radial furrows being smaller, usually six. We found no specimens of this interesting form. Ameghino has made two species, G. tatusinus and G. malaspinensis.
Glyptatelus tatusinus Ameghino
G. tatusinus, Amegh., 1897, Bol. Inst. Geog. Argen., t. 18, p. 507.
I reproduce Ameghino’s figure of this species which shows all that is known of the form.
Fig. 135. Four plates—natural size,
after Ameghino.
Glyptatelus malaspinensis Ameghino
G. malaspinensis Amegh., 1902, Bol. Acad. Nac. Cienc., Cordoba, t. 17, p. 50.
This species is described (no figure) as about the same size as the preceding, but with subordinate figures in the central O-figure, and also outside of it. A dorsal plate measures 26 mm. long by 20 mm. wide.
GRAVIGRADA
Remains of this suborder are almost as rare as those of the glyptodonts, and apparently for the same reason, unfavorable habitat. We found no remains of this group, but Ameghino has described a skull and some teeth as belonging to this group; so, in order to present a complete view of the Deseado fauna, I give a digest of his descriptions.