Assertion: plesiosaur | /r/CapableOf | grade up to the flight of plesiosaurs
Facets:
Source sentences:
text: This group contains a Triassic radiation of amphibious - marine forms long lumped together as a paraphyletic 'Nothosauria' but now consisting of discrete clades that became less land-dependent and more derived in style of paraxial locomotion (i.e. they grade up to the flight of plesiosaurs).