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subclass synapsida
 
Noun subclass synapsida has 1 sense
  1. Synapsida, subclass Synapsida - extinct reptiles of the Permian to Jurassic considered ancestral to mammals
    --1 is a kind of class
    --1 is a member of Reptilia, class Reptilia
    --1 has members:
     Therapsida, order Therapsida; Ictodosauria, order Ictodosauria; Pelycosauria, order Pelycosauria
subclass opisthobranchia subclass ostracoda subclass pantotheria subclass phytomastigina subclass prototheria subclass rhizopoda subclass rosidae subclass selachii subclass synapsida subclass teleostei subclass telosporidia subclass zoomastigina subclasses subclavian subclavian artery subclavian vein subclinical

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