Micraster is an extinct genus of echinoid from the Late Cretaceous. Its remains have been found in Africa, Antarctica, Europe, and North America. Micraster was an infaunal echinoid living in a burrow below the sediment surface. The test is clearly bilateral and there is a deep anterior groove to take in water containing organic particles to the mo...
Found on
http://en.wikipedia.org/wiki/Micraster
• (n.) A genus of sea urchins, similar to Spatangus, abounding in the chalk formation; -- from the starlike disposal of the ambulacral furrows.
Found on
http://thinkexist.com/dictionary/meaning/micraster/
Mi·cras'ter noun [ New Latin , from Greek
mikro`s small + ... star.]
(Paleon.) A genus of sea urchins, similar to Spatangus, abounding in the chalk formation; -- from the starlike disposal of the ambulacral furrows.
Found on
http://www.encyclo.co.uk/webster/M/61
No exact match found.
