Definition of Archaeothyris. Meaning of Archaeothyris. Synonyms of Archaeothyris

- Hylonomus and Petrolacosaurus (both of which resemble Archaeothyris) were found. Archaeothyris lived in what is now Nova Scotia, about 306 million years...
- extinct family of early synapsids from the Carboniferous and Permian. Archaeothyris, and Clepsydrops were among the earliest ophiacodontids, appearing in...
- earliest sauropsid reptiles (Hylonomus), and the earliest known synapsid (Archaeothyris). Synapsids quickly became huge and diversified in the Permian, only...
- from the Pennsylvanian time of the Carboniferous, possibly resembling Archaeothyris, the earliest known synapsid. The caseasaurs were abundant during the...
- reptiles (Hylonomus), and the earliest known "pelycosaur" synapsids (Archaeothyris). Small lizard-like animals quickly gave rise to many descendants. Amniotes...
- Archaeothyris, one of the oldest synapsids found...
- being the predecessor of the other early synapsid Clepsydrops. Like Archaeothyris, Protoclepsydrops resembled a modern lizard in superficial appearance...
- Terrestrially adapted synapsids, the predecessors of the mammal lineage, like Archaeothyris were among the groups who quickly recovered after the collapse....
- The name means 'spiny lizard' (Gr****). Along with its contemporary Archaeothyris, Echinerpeton is the oldest known synapsid, having lived around 308...
- primitive synapsids from the early Late Carboniferous that was related to Archaeothyris. The name means 'hour-gl**** appearance' (Gr**** klepsydra = "hourgl****"...