Definition of Protaxocrinus. Meaning of Protaxocrinus. Synonyms of Protaxocrinus

- rare in the Ordovician (the most common taxa being Cupulocrinus and Protaxocrinus), but the Late Ordovician appears to have been an interval of rapid...
- Dendrocrinus Chabot Member. Eumyelodactylus Fox Point Member. Euspirocrinus Fox Point Member. Protaxocrinus Fox Point Member. Xenocrinus Chabot Member....
- urchin; a replacement name for Sphenaster Jeffery in Smith et al. (1999). Protaxocrinus estoniensis Sp. nov Valid Ausich & Wilson Silurian (Rhuddanian) Hilliste...
- C. inaequalis Daedalocrinus bellevillensis Anomalocrinus astrictus Protaxocrinus laevis Plicodendrocrinus proboscidiatus Simcoecrinus mahalaki Dendrocrinus...
- Prolobocrinus Promelocrinus Prophyllocrinus Propoteriocrinus Protacrocrinus Protaxocrinus Protencrinus Psalidocrinus Pseudoantedon Pseudosaccocoma Psilocrinus...
- †Promytilus †Promytilus illinoisensis †Protathyris †Protathyris congregata †Protaxocrinus †Proterogyrinus †Proterogyrinus scheelei †Prothyris †Prothyris acuticarinata...
- †Prosseria †Prosseria grandis †Protaster †Protaster stellifer †Protaxocrinus †Protaxocrinus annellus †Proteoceras †Proteoceras moniliforme †Proteoceras perkinsi...
- †Proraster †Prosostoma †Protacrocrinus †Protarthraster †Protaster †Protaxocrinus †Protenaster †Protencrinus †Proterocidaris †Proterocystites †Protheelia...
- unidentified related form †Prospira legrandensis †Protacrocrinus †Protatrypa †Protaxocrinus †Protoleptostrophia †Protoleptostrophia fragilis †Protomegastrophia...