neornithine
protofeather
genus Archeopteryx
genus Archaeopteryx
genus Anatotitan
genus Corythosaurus
immature
starling
unfledged
paleornithology
palaeornithology
Archaeornithes
Ornithopoda
suborder Ornithopoda
tail feather
euronithopod
pterylography
Euronithopoda
subclass Archaeornithes
ornithomimosaurian
suborder Euronithopoda
Ceratopsia
maiasaur
suborder Ceratopsia
spadona
pterography
genus Protoavis
teleoptile
dinosauric
bird family
Archaeopteryx lithographica
archeopteryx
family Hadrosauridae
Hadrosauridae
paleopulmonic
archaeopteryx
Lagopus
precoces
genus Ceratosaurus
alternate plumage
prebasic
genus Lagopus
uropygium
fledgling
maniraptoriform
fledgeling
order Ornithischia
beard
Ornithischia
protoavis