tertiary period in a sentence

Examples

1. Approximately 24-36 million years ago these areas were subjected to massive volcanic activity during the Tertiary Period.
2. The geologic formations in this area date to the early Tertiary Period, some 30 million years ago.
3. This is due to the diversity of its geological-tectonic structure, particularly with the new vulcanization during Tertiary Period.
4. Finally in the later part of the Tertiary period the local climate entered a trend of increasing temperatures.
5. The Cenozoic is sometimes divided into the Quaternary and Tertiary periods, although the latter is no longer used officially.
6. These fossils range from the Triassic to the Tertiary periods, but are mostly restricted to the Triassic and Jurassic.
7. After being periodically submerged during the Jurassic and Cretaceous periods, the region finally became land in the Tertiary period.
8. The formation of the Rocky Mountains began in the Late Cretaceous Period and finished in the Early Tertiary Period.
9. This basin was formed by a prehistoric lake ( " Uinta Lake " ) during the late Tertiary period.
10. There are few if any rocks from the ensuing Tertiary period of the Cenozoic era in Pennsylvania's geologic record.