Vi fant 1 definisjoner av subclass synapsida på engelsk.
Noun |
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| subclass synapsida - extinct reptiles of the Permian to Jurassic considered ancestral to mammals | ||
| Synapsida, subclass Synapsida | ||
| class elegance in dress or behavior; "she has a lot of class" | ||
| 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 | ||
| 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 | ||