Archaeornithes
subclass Archaeornithes
genus Protoavis
archaeopteryx
Archaeopteryx lithographica
archeopteryx
crocodilian reptile
crocodilian
palaeornithology
paleornithology
genus Archaeornis
subclass Synapsida
Synapsida
Titanosauridae
family Titanosauridae
genus Ceratosaurus
serpulite
pterosaur
protoavis
flying reptile
plesiosaur
phytosaurian
dinosauriform
plesiosaurus
order Ornithischia
Ictodosauria
pistosaur
genus Ankylosaurus
Ornithischia
order Ictodosauria
palaeoentomology
oryctozoology
pterodactyl
genus Stegosaurus
reptiliferous
order Sauropterygia
zoophytolith
milleporite
Sauropterygia
romeriid
vertebrate paleontology
paleoecology
gephyrostegid
reptilian
ichthyosauriform
protorothyridid
allokotosaur
pterosauromorph
-saur
ornitholite