Akademik

Synapsida

noun

extinct reptiles of the Permian to Jurassic considered ancestral to mammals

• Syn: ↑subclass Synapsida

• Hypernyms: ↑class

• Member Holonyms: ↑Reptilia, ↑class Reptilia

• Member Meronyms: ↑Therapsida, ↑order Therapsida, ↑Ictodosauria, ↑order Ictodosauria, ↑Pelycosauria, ↑order Pelycosauria

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\\-psədə\ noun plural

Usage: capitalized

Etymology: New Latin, from synapsis + -ida

: a subclass of Reptilia comprising extinct reptiles of the Pennsylvanian, Permian, and Triassic, having a single pair of lateral temporal openings in the skull, and usually held to be ancestral to the true mammals — compare ictidosauria, therapsida

Useful english dictionary. 2012.