†Perse markleyensis collarus Clark 1938 (snail)
Gastropoda - Neogastropoda - Fasciolariidae
Full reference: B. L. Clark. 1938. Fauna from the Markley Formation (Upper Eocene) on Pleasant Creek, California . Bulletin of the Geological Society of America 49:683-730
Belongs to Perse markleyensis according to B. L. Clark 1938
Sister taxa: Perse markleyensis nudacostata, Perse markleyensis subangulata
Type specimen: Its type locality is UCMP A1297, which is in an Eocene marine sandstone in the Markley Formation of California
Ecology: epifaunal carnivore
Distribution: there are no occurrences of Perse markleyensis collarus in the database