Pachyrhizodus caninus Cope, 1875

Remarks

• Collector:    Sharon Prachyl

• Formation:  Taylor Group, Ozan Marl

• Location:     Ellis County, Texas

General Info

Synonyms (older names and misidentifications)

• 1875 Pachyrhizodus caninus Cope
• 1875 Pachyrhizodus latimentum Cope
• 1970 Pachyrhizodus caninus Cope; Applegate
• 1970 Pachyrhizodus latimentum Cope; Applegate
• 1989 Pachyrhizodus caninus Cope, Finsley

Stratigraphic Occurrence

• Upper Niobrara Group, Smoky Hill Chalk of Western Kansas
• Lower Taylor Group, Ozan Formation of North Texas
• Eagle Ford Group, Britton Formation (??) of North Texas (horizon correct ??)
• Selma Group, Lower to Middle Mooreville Chalk of Alabama

Age

• Although we don't know its exact range, Pachyrhizodus caninus Copeappears to range from Upper Cenomanian (?) to Lower Campanian time (~94–81 mya).

Geographic Occurrence (not an all-inclusive list)

• Dallas County, TX
• Dallas County, AL
• Ellis County, TX
• Hale County, AL
• Greene County, AL
• Montgomery County, AL
• Wallace County, KS

Remarks

       For identification and descriptions, see:

• Applegate, S. P.  1970.  Vertebrate Fauna of the Selma Formation of Alabama.  Part 8.  The Fishes.  Fieldiana, Geology Memoirs 3 (8), 383–433.
• Cope, E. D.  1871.  On the Fossil Reptiles and Fishes of the Cretaceous Rocks of Kansas.  United States Geological Survey of the Territories (Hayden), Fourth Annual Report, 385–424.