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单词 Lepospondyli
释义
Lepospondyli

Geology and Earth Sciences
  • Group of small Palaeozoic amphibians, distinguished by the possession of vertebrae with spool-shaped centra below the neural arches. Each centrum (the massive part of the vertebra) was perforated lengthwise, providing a channel for the notochord. The lepospondylous, or ‘husk’, vertebra also occurs in living amphibians, but its evolutionary derivation is unclear.


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