Definition of float in the AudioEnglish.org Dictionary. Meaning of float. What does float mean? Proper usage and pronunciation (in phonetic transcription) of the word float. Information about float in the AudioEnglish.org dictionary, synonyms and antonyms.
Mammals evolved from a group of mammal-like reptiles called the Synapsids, specifically the Therapsids, in the Triassic period, around 250 million years ago.
As mentioned above, the first mammals evolved toward the end of the Triassic period from therapsids, the line of mammal-like reptiles that arose in the early Permian period and produced such uncannily mammal-like beasts as Thrinaxodon and Cynognathus.