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Definition of Neoproterozoic
1. Adjective. (geology) Of a geologic era within the Proterozoic eon; comprises the Tonian, Cryogenian and Ediacaran periods from about 1000 to 544 million years ago, when algae and sponges flourished. ¹
2. Proper noun. (geology) The Neoproterozoic era. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Neoproterozoic
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