Helminthochiton riddlei Frederickson 1962 (chiton)

Polyplacophora - Paleoloricata - Helminthochitonidae

Full reference: E. A. Frederickson. 1962. Helminthochiton from the Pennsylvanian of Oklahoma. Oklahoma Geology Notes 22(11):298-302

Belongs to Helminthochiton according to E. A. Frederickson 1962

Sister taxa: Helminthochiton griffithi, Helminthochiton papilio, Helminthochiton simplex

Ecology: facultatively mobile epifaunal grazer

Distribution: found only at Brick plant Quarry, southwest edge of the Ada. NE1/4 SE1/4 sec. 4 T3N, R6E (Carboniferous of Oklahoma)

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