parvipelvian
neoichthyosaur
neoichthyosaurian
thunnosaur
ichnotaxonomy
Stenopterygius quadrisicissus
stenopterygius
ichthyosaurian
stenopterygiid
arthropterygium
ichnomorphology
monofenestratan
ichthyosauromorph
eudromaeosaurian
eudromaeosaur
genus Stenopterygius
Ichthyosauria
order Ichthyosauria
baracromian
chaoyangopterid
ichnoassemblage
ichthyosaurus
eumaniraptoran
euornithopod
ornithocheiroid
scansoriopterygid
macronarian
eusaurischian
parvicursorine
tyrannoraptoran
tyrannosaurine
pelobatoid
dsungaripteroid
mixosaurid
ctenochasmatoid
archaeopterodactyloid
phosphatocopid
anhanguerid
ranoid
arachnomorph
ankylopollexian
dinosauromorph
neornithischian
Uintatheriidae
pentameroid
tapejaroid
family Uintatheriidae
deinonychosaurian
genus Ichthyosaurus
rhabdodontomorphan