Stratigraphy of the Upper Cretaceous Mancos Shale (upper part) and Mesaverde Group in the southern part of the Uinta and Piceance basins, Utah and Colorado

10.3133/i2764 ◽  
2002 ◽  
Keyword(s):  
Upper Cretaceous ◽  
Mancos Shale ◽  
Mesaverde Group

Decapod crustaceans from the Semilla Sandstone Member, Mancos Shale (Upper Cretaceous), north-central New Mexico

1996 ◽  
Vol 70 (1) ◽  
pp. 111-116 ◽  
Author(s):  
Elizabeth K. Toolson ◽  
Barry S. Kues
Keyword(s):  
New Mexico ◽  
Upper Cretaceous ◽  
Decapod Crustaceans ◽  
North Central ◽  
Mancos Shale ◽  
First Time ◽  
Stratigraphic Range

The decapods Linuparus grimmeri Stenzel, Protocallianassa mortoni (Pilsbry) and Necrocarcinus (Cenomanocarcinus) vanstraeleni (Stenzel)? are described from the middle Turonian Semilla Sandstone Member, Mancos Shale, of north-central New Mexico. The main specimen of P. mortoni is unusually complete, consisting of a complete left first cheliped, parts of other pereiopods, and most of the abdomen. Both L. grimmeri and P. mortoni are reported for the first time from the southern Western Interior. The stratigraphic range of L. grimmeri is extended upward from the upper Cenomanian, and the range of P. mortoni downward from the Campanian.

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