What is the Silurian period?
Q: What is the Silurian period?
A: The Silurian period is the period between the end of the Ordovician period and the beginning of the Devonian period, about 443.4 million to 419 million years ago.
Q: What is the Silurian period's place within the Paleozoic era and the Phanerozoic eon?
A: The Silurian period is the third period in the Paleozoic era and the Phanerozoic eon.
Q: Is the beginning and end of the Silurian period precisely known?
A: The rock beds that mark the beginning and end of the Silurian period are well-identified, but the exact dates are uncertain within a range of several million years.
Q: How long did the Silurian period last?
A: The Silurian period is the shortest period in the Paleozoic era, lasting from about 443.4 million to 419 million years ago.
Q: When did the Silurian period begin?
A: The Silurian period began with a major extinction event called the End-Ordovician extinction, which wiped out 60% of marine species.
Q: What happened during the End-Ordovician extinction event?
A: The End-Ordovician extinction event wiped out 60% of marine species and marked the beginning of the Silurian period.
Q: Are there any well-known rock beds that define the start and end of the Silurian period?
A: Yes, the rock beds that define the start and end of the Silurian period are well-identified.
