The Crinoidea, a class of marine echinoderms, have long captivated palaeontologists as one of the most enduring and diverse components of the marine fossil record. Their evolutionary history spans ...

QUESTION: Echinoderms are represented by five living classes. The crinoids are considered to be most similar to ancestral echinoderms. Although the fossil record is inconclusive, it appears that the ...

Class Asteroidea - By turning the crinoid upside down and joining the arms together in pairs, you approximate a seastar. - the arms are usually in multiples of 5. - the mouth is ventral. - there are ...

#25 Stalked Crinoids (Phylum Echiondermata, Class Crinoidea, Sub Class Articulata) Sure we call them sea lilies but they're no pansies. While most people have nightmares about giant squid or shark, ...

Christian VOICULESCU-HOLVAD, Brett CLARK & Timothy A. M. EWIN., 2023: The internal anatomy of Middle Jurassic comatulid cups (Comatulida, Articulata, Crinoidea), as revealed by X-ray microtomography, ...

Belonging to class Crinoidea, meaning "a lily form" in Greek, they can be occasionally found in shallow waters, though they are usually seen beyond depths of 200 m. to as deep as 6,000 m.