Ví dụ về việc sử dụng Silurian period trong Tiếng anh và bản dịch của chúng sang Tiếng việt
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Bony fish first arose during the late Silurian period.
During the Ordovician and Silurian periods(500-410 million years ago), the bay was deep sea.
The armored fish evolved during the Silurian period.
During the Silurian period(443-419 million years ago), the Welsh borderlands lay on the shelf of a tropical sea.
The first jaw fish appeared in the Silurian period.
During the Silurian period(443-419 million years ago), the Welsh borderlands lay on the shelf of a tropical sea.
The first species offish that had jaws that appeared later, during the Silurian period.
Fossils ascribed to the Lycopodiophyta first appear in the Silurian period, along with a number of other vascular plants.
Cartilaginous fish, which include sharks, skates, and rays, evolved during the Silurian period.
The Silurian Period of time is usually broken into early(Llandovery and Wenlock) and late(Ludlow and Pridoli) subdivisions(epochs).
Other plants, better adapted to terrestrial conditions, appeared during the Silurian period.
They were formed during the Caledonian orogeny of the Silurian period and then rejuvenated in the Hercynian orogeny of the Upper Carboniferous period. .
Neither Tethys oceans should be confused with the Rheic Ocean,which existed to the west of them in the Silurian period.
The oldest fossils of echinoderm invertebrates are attributed to the Silurian period(443.8± 1.5 million years ago- 419.2± 3.2 million years ago).
The extinctions occurred approximately 444-447 million years ago and mark the boundary between the Ordovician andthe following Silurian Period.
The Sparalepis fossil suggests that the boomcould have begun as far back as the Silurian Period(443.7 million to 419.2 million years ago).
The first fish with jaws appeared in the Silurian period, after which many(such as sharks) became formidable marine predators rather than just the prey of arthropods.
The Sparalepis fossil suggests that the boomcould have begun as far back as the Silurian Period(443.7 million to 419.2 million years ago).
These began to diversify in the late Silurian Period, around 420 million years ago, and the results of their diversification are displayed in remarkable detail in an early Devonian fossil assemblage from the Rhynie chert.
South of Highway 11 rather there are carbonates andevaporites from the Chaleur formation dating from the Upper Silurian period(418-424 million years ago).
Their numbers began to decline during the middle of the Silurian period and they finally became extinct at the end of the Permian period, 250 million years ago.
Xylem cells are specialised for conduction of water,and first appeared in plants during their transition to land in the Silurian period more than 425 million years ago(see Cooksonia).
There is some evidence that simple life may already have invaded the land at the start of the Paleozoic era,but substantial plants and animals did not take to the land until the Silurian period and did not thrive until the Devonian period. .
The Paleo-Tethys Ocean, mentioned above, existed from the Silurian(440 Ma) through the Jurassic periods, between the Hunic terranes and Gondwana(later the Cimmerian terranes).
The Ordovician- Silurian Extinction Events may have been caused by an ice age that occurred at the end of the Ordovician period, due to the expansion of the first terrestrial plants,[18] as the end of the Late Ordovician was one of the coldest times in the last 600 million years of earth history.