Associations to the word «Proterozoic»
Noun
- Crust
- Granite
- Alga
- Belt
- Rock
- Continent
- Canyon
- Continental
- Era
- Ma
- Boundary
- Formation
- Evolution
- Earth
- Atmosphere
- Oceanic
- Ocean
- Arizona
- Neo
- Dike
- Range
- Ga
- Sediment
- Block
- Stratum
- Shale
- Intrusion
- Massif
- Rift
- Mountain
- Basement
- Deposit
- Sulfide
- Weathering
- Carbonate
- Sandstone
- Karst
- Transvaal
- Geology
- Fossil
- Isotope
- Conglomerate
- Marble
- Basin
- Cretaceous
- Swarm
- Interval
- Epoch
- Shield
- Margin
- Mantle
- Complex
- Limestone
- Wyoming
- Thrust
- Plateau
- Fault
- Fauna
- Genesis
- Arc
- Reef
- Oxygen
- Early
- Reconstruction
- Sequence
- Latitude
- Upper
- Organism
- Cycle
- Hudson
- Plate
- Grand
- Zone
- Younger
Adjective
Adverb
Wiktionary
PROTEROZOIC, proper noun. (geology) The eon from 2,500 Ma to 541.0±1.0 Ma, the beginning of the Phanerozoic, marked by the build up of oxygen in the atmosphere and the emergence of primitive multicellular life.
PROTEROZOIC, adjective. (geology) Of, or relating to the geologic eon from 2,500 Ma to 541.0±1.0 Ma.
Dictionary definition
PROTEROZOIC, noun. From 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms.
PROTEROZOIC, adjective. Formed in the later of two divisions of the Precambrian era; "proterozoic life forms".
Wise words
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