- Blothrocrinidae)
extinct Mississippian (Viséan & Serpukhovian)
United States : 23
Arrectocrinus Knapp 1969
Delocrinus abruptus Moore & Plummer, 1940
Catacrinidae extinct...
- †Archinacella
rotunda †Arctinurus †Arctomeristina †Arisaigia †
Arrectocrinus †
Arrectocrinus iowensis †Arthroxylon †Asphaltinella †Asterophyllites †Asterophyllites...
- †Arkacrinus †Arkarua? †Arkonaster †Armathyraster †Armenocrinus †Arnaudaster †
Arrectocrinus †Arroyocrinus †Arthraster †Arthroacantha †Artichthyocrinus †Artuschisma...
- †Armenoceras †Armenoceras
australe †
Arrectocrinus †
Arrectocrinus major – type
locality for
species †
Arrectocrinus tex**** – type
locality for species...
