WoRMS source details
Stephenson, L. (1953). Mollusks from the Pepper shale member of the Woodbine formation, McLennan County, Texas. United States Geological Survey Professional Paper. 274-C: 57-67, pl. 13.
376932
10.3133/pp243e [view]
Stephenson, L.
1953
Mollusks from the Pepper shale member of the Woodbine formation, McLennan County, Texas
United States Geological Survey Professional Paper
274-C: 57-67, pl. 13
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Anchura umbrana Stephenson, 1953 † (original description)