Definitions

1. noun

A clade of synapsids that includes mammals and their extinct relatives.

“The discovery of therapsid fossils in the Gondwana region provided significant insights into the evolution of mammals.”

2. noun

A group of mammal-like reptiles that lived during the Permian and Triassic periods.

“Therapsids were characterized by their advanced dental and skeletal features, setting them apart from other synapsids.”