Proraster dalli (Clark, 1891)

Remarks

• Collector:    Dan Woehr

• Formation:  Navarro Group, Corsicana Formation

• Location:     Bexar County, Texas

General Info

Synonyms (older names and misidentifications in the literature)

• 1891 Hemiaster dalli Clark

• 1893 Hemiaster dalli Clark; Clark

• 1915 Hemiaster dalli Clark; Clark

• 1924 Hemiaster (Proraster) dalli (Clark); Lambert

• 1926 Proraster dalli (Clark); Lambert

• 1928 Proraster dalli (Clark); Adkins

• 1941 Hemiaster dalli Clark; Stephenson

• 1987 Proraster dalli (Clark); Akers & Akers

Stratigraphic Occurrence

• Navarro Group, Corsicana Formation of south-central Texas

Age

• Proraster dalli (Clark) is a late Maastrichtian echinoid (~66 mya).

Geographic Occurrence (by no means an all-inclusive list)

• Bexar County, Texas

Remarks

         For identification and descriptions, see:

• Stephenson, L. W.  1941.  The Larger Invertebrate Fossils of the Navarro Group of Texas (Exclusive of Corals and Crustaceans, and Exclusive of the Fauna of the Escondido Formation).  University of Texas Bulletin 4101, 63-65; plate 6, fig's 1-4.