Crinoid Calyx (head) Alamosaurus along the neck and tail

along the neck and tail that may have formed a thick

Compsognathus was a bird-like dinosaur that walked on two long

closing off the old

It was found in the late Jurassic to early Cretaceous rocks of China

Crinoid Calyx (head) Alamosaurus along the neck and tailCrinoids are commonly known as sea lilies due to their "flower like" appearance , though they are animals, not plants. Crinoids are echinoderms related to starfish, sea urchins, and brittle stars. Like other members of their phylum they are spiny skinned, have a five sided or pentaradial symmetry as adults and a calcium carbonate endoskeleton. Although crinoids are the least understood of living echinoderms, their skeletal remains are among the most