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pelycosauria
 

Definitions from WordNet

Noun pelycosauria has 1 sense
  1. Pelycosauria, order Pelycosauria - edaphosaurus; dimetrodon
    --1 is a kind of animal order
    --1 is a member of Synapsida, subclass Synapsida
    --1 has members:
     pelycosaur; Edaphosauridae, family Edaphosauridae; genus Dimetrodon

Definitions from the Web

Pelycosauria

Definition:

Pelycosauria refers to an extinct group of reptiles that lived during the Paleozoic Era. These reptiles were the first large-bodied land-dwelling animals and are considered early ancestors of mammals.

Sample Sentences:

  1. The fossils of Pelycosauria provide important insights into the evolution of mammalian characteristics.
  2. Pelycosauria played a significant role in the early terrestrial ecosystems millions of years ago.
  3. Scientists have identified various species of Pelycosauria through thorough analysis of fossil records.

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Paleozoic Fossils on Amazon
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