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Later Cretaceous
This is the longest known Ediacaran age fossil reaching in some instances over 2m
9---Mixopterus
it was more basal ("primitive") than true crown-tetrapods
Syphocrinites elegans, crinoid Posters Later CretaceousCrinoids, commonly referred to as sea lilies, are ocean dwelling creatures that live their lives attached to the sea floor. They are composed of three main body parts: the arms that filter food particles out of the water, the head (or calyx) which houses the internal organs and mouth parts, and the stem which attaches to the sea floor by a root system called a hold fast. Crinoids are animals in spite of their plant like appearance. They are members of