Definition of Arkacrinus. Meaning of Arkacrinus. Synonyms of Arkacrinus

- multibrachiatus Anchicrinus A. planulatus A. rugosus Anobasicrinus A. braggsi Arkacrinus A. constrictus A. dubius Atokacrinus A. tumulosus Calycocrinus C. furnishi...
- of Dactylocrinus) Rowley 1895 Taxocrinus concavus Rowley, 1893 : 217  Arkacrinus Knapp 1969 Delocrinus dubius Mather, 1915 Phanocrinidae extinct Pennsylvanian...
- perforata Septopora crebripora Sulcoretepora brentwoodensis S. sinuomarginata Arkacrinus Eirmocrinus Palmerocrinus Archaeolithophyllum A. missouiense Asphaltina...
- †Archimylacris †Archimylacris venusta – type locality for species †Arkacrinus †Arkacrinus dubius †Arkanites †Arkanites relictus †Arkoceras †Arkoceras exiguum...
- orchamus – type locality for species †Arkacrinus †Arkacrinus constrictus – type locality for species †Arkacrinus dubius †Arkanites †Arkanites relictus...
- †Arenorbis †Argentinaster †Argoviaster †Arisaigaster †Aristocystites †Arkacrinus †Arkarua? †Arkonaster †Armathyraster †Armenocrinus †Arnaudaster †Arrectocrinus...