variabilis East Coast Limestone Quarry, North Carolina A schizasterid heart urchin. Porosoma P. sp. East Coast Limestone Quarry, North Carolina A phymosomatid....

Polytaxicidaris Pomaster Porechinus Poriocidaris Porocidaris Poropeltaris Porosoma Porpitella Pourtalesia Prenaster Printechinus Prionechinus Prionocidaris...

Populus †Populus aspens †Populus aspensis – type locality for species †Porosoma †Porosoma reesidei – type locality for species †Portheus †Postligata †Postligata...

†Porechinus †Poriocidaris †Poroblastus †Porocidaris †Porocrinus †Poropeltaris †Porosoma †Porphyrocrinus †Porpitella †Postibulla †Poteriocrinites †Pourtalesia †Pradesura...