osteolepiformes
panderichthyidae
ichthyostega
acanthostega
colosteidae
loxommatidae
crassigyrinus
dendrerpeton
eryops
ecolsonia
doleserpeton
amphibamus
apateon
tersomius
gephyrostegidae
archeria
proterogyrinus
kotlassia
ariekanerpeton
seymouria
westlothiana
diadectes
limnoscelis
synapsida
procolophonidae
captorhinidae
adelogyrinidae
aistopoda
nectridea
pantylus
rhynchonkos
brachystelechida
lysorophia
triadobatrachus
pipidae
discoglossidae
hynobiidae
karaurus
proteidae
sirenidae
eocaecilia
ichthyophiidae
rhinatrematidae