Help please! Describe the features of Therapsids that suggest this group was transitional to reptiles and mammals.

Question

anonymous · Answer

Limbs are spread vertically beneath the body

anonymous · Answer

Therapsida is a group of synapsids that includes mammals and their immediate evolutionary ancestors. The earliest fossil attributed to Therapsida is believed to be Tetraceratops insignis (Lower Permian).Therapsids evolved from pelycosaurs (specifically sphenacodonts) 275 million years ago. They replaced the pelycosaurs as the dominant land animal. Mammals appeared 200 million years ago, and all therapsids other than mammals became extinct in the Early Cretaceous period (146 Ma to 100 Ma).