Plaxocrinus aplatus- Plaxocrinus beggsi
- Plaxocrinus buffaloensis
- Plaxocrinus conemaughensis
- Plaxocrinus dornickensis
- Plaxocrinus gloukosensis
- Plaxocrinus laxus
- Plaxocrinus lobatus
- Plaxocrinus modestus
- Plaxocrinus normalis
- Plaxocrinus obesus
- Plaxocrinus octarius
- Plaxocrinus oeconomicus
- Plaxocrinus omphaloides
- Plaxocrinus orthodoxus
- Plaxocrinus parilis
- Plaxocrinus perundatus
- Plaxocrinus politus
- Plaxocrinus praevalens
- Plaxocrinus puteus
- Plaxocrinus strigosus
- Plaxocrinus tumulosus
- Plaxocrinus virginarius