Glyptops

Glyptops is an extinct genus of pleurosternid freshwater turtle known from the Late Jurassic of North America.

[1] In 1890, a partial skull, YPM 1784 (described from Como Bluff, Wyoming), was named Glyptops ornatus by Othniel Charles Marsh.

[3] Another Morrison species of Glyptops, G. utahensis, was described from a complete shell (CM 3412) found at Dinosaur National Monument in Utah.

[4] Glyptops later became a wastebasket taxon to refer to isolated shell fragments with a finely sculpted surface texture.

[5] The species Glytops caelatus Hay, 1908 was described from the middle Cretaceous (late Aptian-early Albian) Arundel Formation of Maryland.