Devonian period
subfamily Perdicinae
vertebrate paleontology
paleoecology
Perdicidae
subfamily Perdicidae
Perdicinae
pheasant
Missippian period
order Ictodosauria
Raptores
Cambrian
Ictodosauria
Permian period
Lower Carboniferous
hatchling
genus Archaeopteryx
order Raptores
therapsid
Cambrian period
Lower Carboniferous period
genus Archeopteryx
Mississippian
Permian
archaeopterygid
true warbler
Old World warbler
paleozoology
Chronoperates paradoxus
palaeozoology
over time
ornithology
speciation
Dinornithiformes
palaeoichthyological
Cretacean
palaeomammalogy
order Dinornithiformes
order Psittaciformes
palaeopathology
crocodilian
paleopathology
protomammal
crocodilian reptile
Psittaciformes
Falconidae
sore