The fossil turtles of the Uinta formation.

He published extensively on fossil turtles and Pleistocene mammals.

In 2000, Brand et al. have conducted field research on fossil turtles in the Bridger Formation of Wyoming.

He has also been involved in taphonomy experiments using modern animal carcasses, particularly intended to aid understanding of the features of fossil turtles.

The fossil turtles of North America.

The largest fossil turtle seems to be the freshwater turtle Stupendemys, with an estimated total carapace length of more than 11 feet (3.3 metres).

Nine mating pairs of fossil turtles have been found.

One man recently found guilty of removing a fossil turtle from a national park was fined $50 but sold the fossil for $35,000.

Prior to this discovery, the earliest-known fossil turtles were terrestrial and had a complete shell, offering no clue to the evolution of this remarkable anatomical feature.

The lagest fossil turtle, Archelon, was more than twice the length of the leatherback, at up to 4.5 metres.