†Porosoma reesidei Cooke 1953 (sea urchin)
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Echinoidea - Calycina - Phymosomatidae
Full reference: C. W. Cooke. 1953. American Upper Cretaceous Echinoidea. United States Geological Survey Professional Paper 254-A:1-44
Belongs to Porosoma according to C. W. Cooke 1953
Sister taxa: Porosoma cribrum, Porosoma fifei, Porosoma lamberti, Porosoma maeandrinum, Cyphosoma (Coptosoma) singulare
Type specimen: USNM 108367. Its type locality is USGS 23423, Little Horse Creek, which is in a Coniacian marine sandstone in the Frontier Formation of Wyoming.
Ecology: slow-moving low-level epifaunal omnivore
Distribution:
• Cretaceous of United States (2: Wyoming collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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