Stenopterygius quadrisicissus
stenopterygius
stenopterygiid
arthropterygium
thunnosaur
genus Ichthyosaurus
genus Stenopterygius
neoichthyosaurian
neoichthyosaur
parvipelvian
order Ichthyosauria
Ichthyosauria
Pallas's gull
ichthyosaurian
ophthalmosaurid
thunnosaurian
archaeopterodactyloid
ichthyopterygian
scansoriopterygid
temnodontosaurid
leptonectid
ichnomorphology
edaphosaur
arachnomorph
shovelhead
ophthalmosaur
deinonychosaur
euornithopod
aromobatid
istiodactylid
genus Lobipes
ichthyosauriform
Steganopus
ichneumonidan
Lobipes
ichthyosauromorph
genus Steganopus
eumaniraptoran
deinonychosaurian
chaoyangopterid
phreatogammarid
ichthyosaurus
ichnoassemblage
nodosaurian
stegocephalid
phosphatocopid
dinocaridid
ichthyoplanktological
genus Thrips
tyrannosaurine