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