Goniophorus scotti Lambert, 1927

• Collector:    Lee Duchouquette
• Formation:  Lower Washita Group, Duck Creek Formation
• Location:     Tarrant County, TX.
• Dimensions:  diam = 13 mm, ht = 8 mm

• Collector:  Keith Minor
• Formation:  Upper Washita Group, Grayson Formation
• Location:  McLennan County, TX
• Dimensions:  diam = 6 mm, ht = 4 mm

General Info

Synonyms (incomplete synonymy)

• 1927 Goniophorus scotti Lambert in Scott

• 1928 Goniophorus scotti Lambert; Adkins

• 1940 ? Goniophorus whitneyi Ikins

• 1987 Goniophorus scotti Lambert; Akers and Akers

Stratigraphic Occurrence

• Uppermost Washita Group, Grayson Formation of north Texas

• Uppermost Washita Group, Del Rio Formation of central Texas

• Upper Washita Group, Weno Formation of north Texas

• Lower Washita Group, Fort Worth Formation of north Texas

• Lower Washita Group, Upper Marl Member of the Duck Creek Formation of north Texas

Age

• Goniophorus scotti Lambert ranges throughout the Washita Group, from the Mortoniceras equidistans (Cragin) zone to about the Graysonites lozoi Young zone, middle Late Albian Stage to the middle Early Cenomanian Stage (~101–97 mya).

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

• Tarrant County, TX

Remarks

         For identification and descriptions, see:

• Cooke, C. W.  1946.  Comanche Echinoids.  Journal of Paleontology 20 (3), 202 and plate 31, figs 8 and 9.