Rhaphanocrinus

Rhaphanocrinus sculptus
MUGM 15464; Photo courtesy of Jack Kallmeyer
Scale bar is 1 cm
Species
Rhaphanocrinus sculptus (S.A. Miller, 1882)
Occurrence: Liberty
Reference: Dalvé, 1948
Originally Glyptocrinus sculptus
Similar in appearance to Glyptocrinus, with stellate plates; sharp ray ridges