Stylemys nebrascensis, Tortoise/Turtle Argentinosaurus The middle and outer toes

The middle and outer toes of the latter measure six inches

In the class Aves

Stylemys ranged from the late Eocene to early Oligocene

Recent research that examined the microscopic bone structure of the tall neural spines in edaphosaurids has raised doubts about a thermoregulatory role for the sail and suggests that a display function is more plausible

flattened laterally and very high

Stylemys nebrascensis, Tortoise/Turtle Argentinosaurus The middle and outer toesThe tortoises of the Badlands are one of the most abundant, and are certainly among the most fascinating vertebrates from the Brule Formation. Joseph Leidy, in 1852, described Stylemys nebrascensis from several specimens collected by John Evans of the U. S. Geological Corp in an expedition to the Territory in 1849. Stylemys nebrascensis was the first fossil turtle described from North America. Specimens of these tortoises range in size from as small