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Subclass Synapsida (Noun)

Meaning

Extinct reptiles of the Permian to Jurassic considered ancestral to mammals.

Classification

Nouns denoting animals.

Examples

  • The subclass Synapsida is a group of extinct reptiles that lived during the Permian to Jurassic periods and are considered ancestral to mammals.
  • The early synapsids, such as Dimetrodon, were characterized by their sail-like dorsal fin and were among the first members of the subclass Synapsida.
  • The subclass Synapsida is thought to have originated in the late Permian period, around 260 million years ago, and went on to diversify into various groups.
  • Some members of the subclass Synapsida, such as the therapsids, developed more mammal-like characteristics, including hair and mammary glands.
  • The subclass Synapsida is often referred to as the "mammal-like reptiles" due to their transitional characteristics between reptiles and mammals.

Synonyms

  • Synapsida

Hypernyms

  • Class
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