Definition of Phragmactis. Meaning of Phragmactis. Synonyms of Phragmactis

- Lamarck Ophiurella Ophiurina Ophiuriocoma Paleocoma Palaeophiura Palaeura Phragmactis Pradesura Protaster Ptilonaster Rhopalocoma Schoenaster Silesiaster Sinosura...
- †Phimocrinus †Phlyctocystis †Phocidaster †Pholidechinus †Pholidocidaris †Phragmactis †Phrygilocrinus †Phyllacanthus †Phyllobrissus †Phyllocrinus †Phyllocystis...
- species †Pholidops †Pholidostrophia †Pholidostrophia pennsylvanica †Phragmactis †Phricodothyris †Phthinomylacris †Phthinomylacris medialis – type locality...