prototherian

Definitions

Belonging or pertaining to the subclass Prototheria.

Examples

“It is evident that the Edentates are widely separated from all other existing Eutherians; and Professor W. K. Parker, in view⟳ of the tendency to a variation in the number⟳ of cervical vertebræ and other features, has suggested a separate⟳ origin from a Prototherian stock⟳.”

“In his classification of prototherian mammals Hopson (31) queried the allocation of Haramiyidae to the Multituberculata and suggested that multituberculates were derived from a morganucodontid ancestry.”

“[…]the modern remaining prototherian lines are the Australian and New Guinean monotremes, egg-laying mammals now represented by the grub- and shrimp-eating platypus (Ornithorhyncus) and ant-eating echidna (Tachyglossus and Zaglossus).”

CEFR level