1. Precambrian - Noun
2. Precambrian - Adjective
3. Precambrian - Proper noun
the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago
Source: WordNetAccording to J.D.A. Piper, Rodinia is one of two models for the configuration and history of the continental crust in the latter part of Precambrian times. Source: Internet
Amthor (2003) describes evidence from Oman that indicates the carbon isotope excursion relates to a mass extinction: the disappearance of distinctive fossils from the Precambrian coincides exactly with the carbon-13 anomaly. Source: Internet
A continuous section is available from beds that are clearly Precambrian into beds that are clearly Cambrian. Source: Internet
Ancient Precambrian basalts are usually only found in fold and thrust belts, and are often heavily metamorphosed. Source: Internet
As originally used, it was a synonym for "Precambrian" and hence included everything prior to the Cambrian boundary. Source: Internet
Corresponds to "Precambrian X" rocks of older North American geology. Source: Internet