English
wikipedia
Adjective
en-adj
- geology Of a geologic era within the Proterozoic eon; comprises the Calymmian, Ectasian and Stennian periods from about 1600 to 900 million years ago, when the Rodinia supercontinent was formed.
Proper noun
en-proper noun
- geology The Mesoproterozoic era.
See also
Wiktionary appendix:Geologic timescale
zh:Mesoproterozoic
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