Answer: crinoidal

AnswerCrossword Clue
crinoidalof or like a crinoid, a family of marine creatures
crinoidallilylike
crinoidalany echinoderm of the class Crinoidea, having a cup-shaped body to which are attached branched, radiating arms, comprising the sea lilies, feather stars, and various fossil forms
crinoidalbelonging or pertaining to the Crinoidea