Xanthosia occidentalis Bishop, 1985

Remarks

• Collector:    Unknown

• Formation:  Pierre Shale

• Location:     South Dakota

General Info  

Synonyms (older names and misidentifications in the literature)

• 1962 Xanthosia elegans Roberts

• 1972 Xanthosia elegans Roberts; Wright and Collins

• 1985 Xanthosia elegans occidentalis Bishop

• 1991 Xanthosia occidentalis Bishop; Bishop

Stratigraphic Occurrence

• Pierre Shale, Upper Gammon Ferruginous Member

Age  

• Xanthosia elegans occidentalis Bishop occurs in the Baculites sp.(Smooth) zone, upper Lower Campanian (~81 mya).  

Geographic Occurrence (not an all-inclusive list)

• Butte County, SD

Remarks  

         For identification and descriptions, see:  

• Bishop, G. A.  1985.  Fossil Decapod Crustaceans from the Gammon Ferruginous Member, Pierre Shale (Early Campanian), Black Hills, South Dakota.  Journal of Paleontology 59 (3), 605-625.

• Bishop, G. A.  1991.  Xanthosia occidentalis Bishop, 1985, and Xanthosia spinosa, New Species, Two Late Cretaceous Crabs from the Pierre Shale of the Western Interior.  Journal of Crustacean Biology 11 (2), 305-314.