The Ordovician lasted for 47 million years from 490 to 443 Million Years Ago.
490 million years ago.
The Ordovician era (~488.3 to 443.7 million years ago) was named for the Ordovices, a Celtic tribe.
The Ordovician period came first. It started 485.4 million years ago and finished 443.8 million years ago. Then came the Silurian and Devonian periods, followed at 358.9 million years ago by the Carboniferous.
About 44 million years
470 million years ago was in the Ordovician Period (488.3 - 443.7 Ma).Phanerozoic Eon (542 Ma - Now)Paleozoic Era (542 - 251Ma)Ordovician Period (488.3 - 443.7Ma)Middle Ordovician Epoch (471.8 - 460.9Ma)Dapingian Age (471.8 - 468.1Ma)
The Ordovician Period started about 488.3 ± 1.7 Ma (million years ago), and lasted for about 44.6 million years. For more details, see the Related Link below.
The Appalachian Mountain range was created during the middle Ordovician Period (about 496-440 million years ago).
The Ordovician was in the Paleozoic era, and lasted from 505 to 438 million years ago. Trilobites were common then, and the earliest jawless, bony fish.
The Silurian is a geologic time period of the early Paleozoic. The Silurian was approximately 440 million years ago, to 416 million years ago. The Silurian was the period immediately after the Ordovician.
They are both time periods of the early Paleozoic. The Ordovician was approximately 490 million years ago, to 440 million years ago. The Silurian was approximately 440 million years ago, to 416 million years ago. The Silurian was the period immediately after the Ordovician. The two periods were divided by the second largest Mass extinction in history.
Ordovician 4000 to around 4600 million years ago
The Silurian period.
It was a geological period about 444 million years ago. also see Ordovician-Silurian extinction events. see Related Link below
there are none!
Fossils of the earliest land plants come from the Ordovician period (roughly 450 million years ago).
The Ordovician Period was about 505 to 438 million years ago. During this period there was just one large super-continent which was mostly covered by shallow seas. During this time marine invertebrates and primitive fish were abundant. The only danger of this period was a large extinction of most of life by an Ice Age.
The Ordovician Period
The dominant organism during the ordovician time period is the cephalopods. answered by: Baleigh Allman :) <3
Lots of land