Terreneuvian
Paibian
Fortunian
Drumian
Jiangshanian
neornithischian
Guzhangian
Cambrian
Cenomanian
superposition principle
principle of superposition
Coniacian
superposition
Lower Paleozoic
Aptian
Albertan
ecostratigraphy
Uintatheriidae
family Uintatheriidae
finicretaceous
toponomic
Campanian
biostratigraphy
rhynchosaur
styracosternan
Anapsida
calcimicrobe
docodontan
creodont
subclass Anapsida
bioclast
thalassochelydian
Rhynchocephalia
Burdigalian
Pendraig
sandownid
indricothere
Messinian
neotheropod
therizinosaur
Tortonian
Langhian
Serravallian
therizinosaurian
order Rhynchocephalia
stylophoran
Hynerpeton
Cretaceous
genus Hynerpeton
stalagmite