silurian period उदाहरण वाक्य

उदाहरण वाक्य

1. During the Silurian period Avalonia and Baltica moved rapidly towards Laurentia at a position about 20�south of the equator.
2. The only surviving asaphids were members of superfamily Trinucleioidea, and they too disappeared before the end of the Silurian Period.
3. The Conwy is bounded to the east by the rolling ancient mudstone hills of the Silurian period, the Migneint Moors.
4. Vascular plants first appeared during the Silurian period, and by the Devonian had diversified and spread into many different terrestrial environments.
5. The Old Red Sandstone extends back into the late Silurian period and forward into the earliest part of the Carboniferous period.
6. Some first incarnation of Vishnu in the form of a fish resembles the evolutionary origin of fish in the Silurian Period.
7. They evolved in the sea at the beginning of the Silurian Period, some 50 million years before the first sharks appeared.
8. Neither Tethys oceans should be confused with the Rheic Ocean, which existed to the west of them in the Silurian period.
9. Rugose or horn corals became dominant by the middle of the Silurian period, and became extinct early in the Triassic period.
10. The extinctions occurred approximately 447 444 million years ago and mark the boundary between the Ordovician and the following Silurian Period.