Where does “Ordovician” come from?
Ordovician (English) comes from English -ian, from Latin -iānus, from Latin -ānus — Of or pertaining to; -ian.
Ordovician (English): Of a geologic period within the Paleozoic era; comprises lower, middle and upper epochs from about 488 to 443 million years ago
Definitions
- Of a geologic period within the Paleozoic era; comprises lower, middle and upper epochs from about 488 to 443 million years ago