Ordovician

English

Etymology

Named by Charles Lapworth in 1879 after the Celtic tribe of the Ordovices.

Adjective

Ordovician (comparative more Ordovician, superlative most Ordovician)

  1. (geology) Of a geologic period within the Paleozoic era; comprises lower, middle and upper epochs from about 488 to 443 million years ago.

Proper noun

Ordovician

  1. (geology) The Ordovician period.

Translations

See also
  • Appendix:Geologic timescale
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.