#dorycrinus

alt: a crinoid is an echinoderm with radial arms jutting out of a central cup atop a stalk, like a sea flower with feathery tentacles instead of petals. Dorycrinus is one of many spiky crinoids from the carboniferous. On its cup, above the attachment points of its feathery arms, are 5 large radial spines and one smaller central spine to either deter parasites from attaching on it, or fend off predators that attack said parasites which will also damage the crinoid.