Micraster
Micraster , noun
[New Latin, from Greek mikro`s small + {not transcribed} star.]
(Paleontology) A genus of sea urchins, similar to Spatangus, abounding in the chalk formation; -- from the starlike disposal of the ambulacral furrows.
Micraster , noun
[New Latin, from Greek mikro`s small + {not transcribed} star.]