Sea Star Platastenras: Ossicle Morphology and Taxonomic Position

Science  21 Apr 1972:
Vol. 176, Issue 4032, pp. 306-307
DOI: 10.1126/science.176.4032.306


The modern sea star Platasterias latiradiata, on the basis of ossicle morphology, is removed from the fossil subclass Somasteroidea and assigned to the genus Luidia of the living subclass Asteroidea. A somasteroid assignment of this species should not be used in inferences concerning evolution and morphology of primitive echinoderms.