acritolepid
callipurbeckiid
leptolepid
holoptychiid
petalichthyid
sheepshead
eriptychiid
opabinid
pachychormiform
suborder Heterostraci
oreosomatid
dapediid
etheostomoid
macrosemiid
Heterostraci
eugaleaspid
Eurypterida
subclass Teleostei
order Eurypterida
sea scorpion
ophidiiform
Teleostei
pteraspidid
coelacanthoid
osteostracan
plunderfish
gyracanthid
leptolepidid
elpistostegalian
neopterygian
wolffish
symmoriiform
North American freshwater catfish
paleoparadoxiid
acanthodian
diplocercid
coelacanthiform
lobe-finned fish
acanthomorph
lobefin
phoebodontiform
euchondrocephalan
archaeostracan
crossopterygian
anablepid
bradoriid
ichthyosauromorph
velvetfish
elopocephalan
pholidophorid