Millericrinida is an order of articulate

crinoid Crinoids are marine animals that make up the class Crinoidea. Crinoids that are attached to the sea bottom by a stalk in their adult form are commonly called sea lilies, while the unstalked forms are called feather stars or comatulids, which are ...

s that originated in the

Anisian In the geologic timescale, the Anisian is the lower stage or earliest age of the Middle Triassic series or epoch and lasted from million years ago until million years ago. The Anisian Age succeeds the Olenekian Age (part of the Lower Triassic Ep ...

(Middle Triassic).

References

Articulata (Crinoidea) Anisian first appearances Extant Middle Triassic first appearances Prehistoric animal orders Echinoderm orders {{crinoidea-stub