USGS Thesaurus
Toggle navigation
Home
Advanced search
About...
My account
geologic time periods
Home
time periods
geologic time periods
Term
Metadata
geologic time periods
Alternative terms
UF
↸
geologic age
UF
↸
geologic time
Broader Terms
BT
↑
time periods
More specific terms
NT2
↓
phanerozoic
►
▼
NT3
↓
cenozoic
►
▼
NT4
↓
quaternary
►
▼
NT5
↓
holocene
NT5
↓
pleistocene
NT4
↓
tertiary
►
▼
NT5
↓
neogene
►
NT5
↓
paleogene
►
NT3
↓
mesozoic
►
▼
NT4
↓
cretaceous
NT4
↓
jurassic
NT4
↓
triassic
NT3
↓
paleozoic
►
▼
NT4
↓
cambrian
NT4
↓
devonian
NT4
↓
mississippian
NT4
↓
ordovician
NT4
↓
pennsylvanian
NT4
↓
permian
NT4
↓
silurian
NT2
↓
precambrian
►
▼
NT3
↓
archaean
NT3
↓
hadean
NT3
↓
proterozoic
►
▼
NT4
↓
Neoproterozoic
►
▼
NT5
↓
Ediacaran
Date of creation
20-Nov-2007
Accepted term
20-Nov-2007
Descendant terms
31
ARK
ark:/99152/t35dgpznymp4ox
More specific terms
2
Alternative terms
2
Related terms
0
Notes
0
Metadata
BS8723-5
DC
MADS
SKOS-Core
VDEX
XTM
Zthes
JSON
JSON-LD
Search