ROM-42183 is an
entoplastron. On the ventral surface are visible, well-defined gular-humeral and humeral-pectoral sulci on both sides of the specimen, which are nearly symmetrical (Fig.
Ventrally, the
entoplastron is subrhombic, almost as wide as long (Fig.
Here we report discovery of two new fossil specimens of tortoises from Cathedral Cave, review morphological differences in the
entoplastron and epiplastron of some North American testudinoids, and discuss the temporal and spatial significance of these fossils.
En la parte anterior derecha del hyoplastron se observan dos suturas, la primera de forma curva, que articulaba a este elemento con el
entoplastron, la segunda es de forma recta y conectaba al hyoplastron con el epiplastron.
The
entoplastron is reduced, separating only the epiplastrals and very little of the hyoplastrals.
Devils Nest: one costal fragment, one
entoplastron, two plastral fragments, one osteoderm, UNSM 56908.