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