A fossil blastoid echinoderm of the mostly North American genus Pentremites, having five spiracles surrounding the mouth.
| 单词 | θ33380 |
| 释义 | the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > division Pelmatozoa > member of class Blastoidea > member of genus Pentatremites (1) pentremite1841 A fossil blastoid echinoderm of the mostly North American genus Pentremites, having five spiracles surrounding the mouth. |
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