A fossil shell of a nautiloid cephalod mollusc of the Palaeozoic or early Mesozoic eras, having a long, straight (or nearly straight) chambered…
| 单词 | θ33297 |
| 释义 | the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > order Tetrabranchiata > family Orthoceratidae > genus Orthoceras > member of (2) orthoceratite1786 A fossil shell of a nautiloid cephalod mollusc of the Palaeozoic or early Mesozoic eras, having a long, straight (or nearly straight) chambered… Subcategories:— fossil shell of (1) |
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