synapsid reptile

Definitions

  • WordNet 3.6
    • n synapsid reptile extinct reptile having a single pair of lateral temporal openings in the skull
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Usage

In literature:

Their remains fall into two great groups, which are known as the Diapsid and the Synapsid reptiles.
"The Story of Evolution" by Joseph McCabe
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In news:

McDaniel's co-worker, Jimmy Richardson, found the rock which is believed to be from the synapsid reptile family some 260-280 million years ago.
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