Some pelycosaurs gave rise to reptile ancestral to
lamphreys angiosperm mammals paramecium animals protozoa arachnids backbones
A B C D E F G H
Therapsids are reptiles ancestral to mammals.
Some pelycosaurs gave rise to  reptile ancestral to mammals.
Some pelycosaurs gave rise to reptile ancestral to (A) lamphreys (B) angiosperm (C) mammals (D) paramecium (E) animals (F) protozoa (G) arachnids (H) backbones