English Evolution of mammals Cited by user HanochP on 17 Dec 2023 The evolution of mammals has passed through many stages since the first appearance of their synapsid ancestors in the Pennsylvanian sub-period of the late Carboniferous…
Chinese 有陰囊類 Cited by user Raymon090 on 12 Oct 2022 有陰囊類(學名:Scrotifera),又稱脈獸類 ,是有胎盤類下的一個演化支,包含了翼手目、猛獸有蹄類及牠們的共同祖先. 根據分子系統發生學研究,有陰囊類是真盲缺目的姊妹群 ,兩者共同組成勞亞獸總目.