Notomyotina
Notomyotina (starfish; subclass Asteroidea, order Paxillosida) A suborder of starfish which have long, flexible arms. The lower and upper rows of marginal plates alternate, and bear long, outwardly directed spines. The distal marginals imbricate with each other. The suborder is known from the Upper Cretaceous to the present.
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1. The earliest age in the Miocene Epoch, preceded by the Chattian (Oligocene), followed by the Burdigalian, and with a lower boundary set…
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Notomyotina