dimetrodon

As nouns the difference between synapsid and dimetrodon

is that synapsid is any animal (including all mammals) of the class synapsida while dimetrodon is a carnivorous synapsid, of the genus , from the permian period.

As an adjective synapsid

is 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.

As an adjective carnivorous

is of, or relating to carnivores, or the taxonomic order carnivora.

As a noun dimetrodon is

a carnivorous synapsid, of the genus , from the permian period.