carboniferous period in a sentence

Examples

1. Glyptochiton became extinct during the Carboniferous period.
2. Five major rock formations present in Colton Point State Park are from the Devonian and Carboniferous periods.
3. Lepidodendrales likely lived in the wettest parts of the coal swamps that existed during the Carboniferous period.
4. The mammalian line of descent diverged from the sauropsid line at the end of the Carboniferous period.
5. Previously, the Oegophiurida were known only to exist from the lower Ordovician to the upper Carboniferous periods.
6. Dragonflies had three-foot wingspans in the Carboniferous period, which was also known as the Age of Cockroaches.
7. The rock is estimated to have formed some 350 million years ago during the early Carboniferous period.
8. These are probably from the Carboniferous period.
9. The rocks are punctuated with abundant natural resources of coal and iron ore from the Carboniferous period.
10. Geologically, the town is situated on rocks of the Carboniferous Period, consisting of coal measures and gritstones.