P. cometa

Abbreviatocrinites, Acariaeocrinus, Balearocrinus, Becharocrinus, Bihaticrinus, Communicrinus, Coronocrinus, Craspedocrinus, Cyclocaudex, Cyclocrista, Cyclocyclicus, Cycloscapus, Dazhucrinus, Dicirrocrinus, Dolichocrinus, Dronovicrinus, Dulanocrinus, Dwortsowaecrinus, Edriocrinus, Eucalyptocrinus, Flexicrinus, Floripila, Flucticharax, Gemmacrinus, Glyphidocrinus, Helicocrinus, Hemistreptocrinus, Heterostelechus, Katarocrinus, Kojvicrinus, Lamprosterigma, Laubeocrinus, Lichenocrinus, Lotocrinus, Malovicrinus, Mastocrinus, Mitrocrinus, Mooreanteris, Multifidocrinus, Nodolanx, Nonparactocrinus, Ordinacrinus, Pachyocrinus, Pandocrinus, Paractocrinus, Parorthocrinus, Passalocrinus, Pentacrinus, Pentagonocyclicus, Pentagonopterix, Pentaridica, Phillipsocrinus, Pinegicrinus, Poteriocrinus, Preptopremnum, Salairocrinus, Solanocrinus, Spriocrinus, Tatjanicrinus, Tetractocrinus, Tetractocrinus, Tetragonocyclicus, Tetralobocrinus, Tetramerocrinites, Thuringocrinus, Torrocrinus, Trochocrinites, Tytthocrinus, Webericrinus, Zeravschanocrinus