Diapsid vs. Synapsid
Diapsidnoun
(zoology) Any of very many reptiles, of the subclass Diapsida, that have a pair of openings in the skull behind each eye
Diapsidnoun
reptile having a pair of openings in the skull behind each eye
Diapsid
Diapsids () are a group of amniote tetrapods that developed two holes (temporal fenestra) in each side of their skulls about 300 million years ago during the late Carboniferous period. The diapsids are extremely diverse, and include all crocodilians, lizards, snakes, tuatara, turtles, and birds.
Synapsidadjective
Pertaining to the class Synapsida, of animals which have an opening low in the skull roof behind each eye, leaving a bony arch beneath each.
Synapsidnoun
Any animal (including all mammals) of the class Synapsida.
Synapsidnoun
extinct reptile having a single pair of lateral temporal openings in the skull
Synapsid
Synapsids are a group of animals that includes mammals and every animal more closely related to mammals than to the other members of the amniote clade, such as reptiles and birds. Unlike other amniotes, they have a temporal fenestra, an opening low in the skull roof behind each eye, leaving a bony arch beneath each; this accounts for their name.
Diapsid Illustrations
Synapsid Illustrations
