Jurassic Morrison Apatosaurus Tooth VF-JC-24-038Apatosaurus sp. Morrison Formation Brushy Basin Member Upper Jurassic Moffat County, Colorado This is an exceptional example of the rare tooth of Apatosaurus that is prepared in its original matrix. It is 4. 2 cm long and 9 mm wide at the base. It is wonderfully preserved for such a delicate relic. This specimen may represent an un erupted tooth as there is no visible wear at the tip. The tooth surface texture is diagnostic of the genera. This example