Proterozoic: meaning, definitions and examples
๐ชจ
Proterozoic
[ prษหtษrษหzoสษชk ]
geological epoch
The Proterozoic is a geological eon that lasts from 2.5 billion to 541 million years ago. It is characterized by the presence of multicellular life forms and significant geological, atmospheric, and biological changes. This eon is significant for the development of the Earth's crust and the early evolution of life.
Examples of usage
- The Proterozoic era saw the formation of the first supercontinents.
- This rock layer dates back to the Proterozoic.
- Researchers study Proterozoic fossils to understand early life.
Translations
Translations of the word "Proterozoic" in other languages:
๐ต๐น Proterozoico
๐ฎ๐ณ เคชเฅเคฐเฅเคเฅเคฐเฅเคเคผเฅเคเค
๐ฉ๐ช Proterozoikum
๐ฎ๐ฉ Proterozoik
๐บ๐ฆ ะัะพัะตัะพะทะพะน
๐ต๐ฑ Proterozoik
๐ฏ๐ต ๅ็ไปฃ
๐ซ๐ท Protรฉrozoรฏque
๐ช๐ธ Proterozoico
๐น๐ท Proterozoik
๐ฐ๐ท ์์๋
๐ธ๐ฆ ุงูุจุฑูุชูุฑูุฒูู
๐จ๐ฟ Proterozoikum
๐ธ๐ฐ Proterozoikum
๐จ๐ณ ๅ ๅคไปฃ
๐ธ๐ฎ Proterozoik
๐ฎ๐ธ Proterozoic
๐ฐ๐ฟ ะัะพัะตัะพะทะพะน
๐ฌ๐ช แแ แแแแแแฃแแ
๐ฆ๐ฟ Proterozoik
๐ฒ๐ฝ Proterozoico
Etymology
The term 'Proterozoic' originates from the Greek words 'proteros,' meaning 'earlier,' and 'zoic,' meaning 'life.' Introduced in the geological time scale, the Proterozoic eon encompasses a significant period in Earthโs history, bridging the Archean and Phanerozoic eons. It was first identified in the early 20th century as geologists recognized the importance of understanding the chronological development of the Earth. The Proterozoic is notable because it contains a detailed record of early life forms, particularly the advent of multicellular organisms, and significant geological changes. During this eon, Earth underwent major tectonic, climatic, and biological transformations, setting the stage for the Cambrian explosion that marks the beginning of the Phanerozoic eon.