Carboniferous
Concise Oxford English Dictionary © 2008 Oxford University Press:
Carboniferous /ˌkɑːbəˈnɪf(ə)rəs/
▶adjective Geology relating to or denoting the fifth period of the Palaeozoic era (between the Devonian and Permian periods, about 363 to 290 million years ago), a time when extensive coal-bearing strata were formed.
'Carboniferous' also found in these Oxford entries:
coal measures
- Culm
- Devonian
- -ferous
- millstone grit
- Mississippian
- pelycosaur
- Pennsylvanian
- Permian

