References / paperStem caecilian from the Triassic of Colorado sheds light on the origins of Lissamphibia
Pardo, J.D.; Small, B.J.; Huttenlocker, A.K.
Year2017
Source roleprimary-study
DOI / ID10.1073/pnas.1706752114
Fitness and scope
range · taxonomy · topology · morphology · ecology · methods
CT-informed description and inclusive analysis of two Chinlestegophis skulls proposed a stereospondyl caecilian stem, an interpretation later challenged by broader gymnophionomorph sampling.
Claim ledger
topology · contestedThe Chinlestegophis analysis placed two Late Triassic skulls on the caecilian stem and drew stereospondyls into Lissamphibia, whereas the later Funcusvermis analysis recovered a dissorophoid gymnophionomorph stem and did not retain that stereospondyl-caecilian route.
claim:taxon:lissamphibia:stereospondyl-caecilian-hypothesis