SYNAPSIDA

 Dictionary entry overview: What does Synapsida mean? 

• SYNAPSIDA (noun)
  The noun SYNAPSIDA has 1 sense:

1. extinct reptiles of the Permian to Jurassic considered ancestral to mammals

  Familiarity information: SYNAPSIDA used as a noun is very rare.

 Dictionary entry details 

• SYNAPSIDA (noun)

Meaning:

Extinct reptiles of the Permian to Jurassic considered ancestral to mammals

Classified under:

Nouns denoting animals

Synonyms:

subclass Synapsida; Synapsida

Hypernyms ("Synapsida" is a kind of...):

class ((biology) a taxonomic group containing one or more orders)

Meronyms (members of "Synapsida"):

order Therapsida; Therapsida (extinct mammal-like reptiles found inhabiting all continents from the mid Permian to late Triassic)

Ictodosauria; order Ictodosauria (extinct reptiles of the later Triassic period)

order Pelycosauria; Pelycosauria (edaphosaurus; dimetrodon)

Holonyms ("Synapsida" is a member of...):

class Reptilia; Reptilia (class of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates; once the dominant land animals)