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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.
What else can I help you with?
What are the periods that divide the early paleozoic?
Devonian, Carboniferous and Permian Periods
What periods of the paleozoic era are not represented by rock of the grand canyon?
The Ordovician period and the Silurian period
What periods of the Paleozoic era are not represented by the rock of the Grand Canyon?
The Ordovician period and the Silurian period
What periods of the Paleozoic era are not represent by rock of the Grand Canyon?
The Ordovician period and the Silurian period
What were some of the periods included in the paleozoic era?
The periods are... 1. Cambrian 2. Ordovician 3. Silurian 4. Devonian 5. Carboniferous 6. Permian -You owe me big time!
What are the time periods of the paleozoic era?
From youngest to oldest: 1. Permian 2. Pennsylvanian 3. Mississippian 4. Devonian 5. Silurian 6. Ordovician 7. Cambrian
What came after the Ordovician period?
The Silurian period followed the Ordovician period.
How many periods are in each era?
there are different periods in each era. In the Cenozoic era, there are 2 periods, Quaternary and Tertiary. Mesozoic era has 3 periods, Cretaceous, Jurassic, and Triassic. Paleozoic has 7 periods, Permian, Carboniferous, Devonian, Silurian, Ordovician, and Cambrian. Precambrian is just the present, no time periods in it.
What are the periods in order?
The geological time scale is divided into several hierarchical categories, with the largest being eons, then eras, periods, epochs, and ages. The major periods within the Phanerozoic Eon, which spans the last 541 million years, include the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian, Triassic, Jurassic, and Cretaceous periods, followed by the Paleogene, Neogene, and Quaternary periods. Each period is characterized by distinct geological, climatic, and biological events.
What are the major subdivisions of geologic times?
The major subdivisions are the Precambrian, Palaeozoic, Mesozoic and Cenozoic, which are subdivided into Archean and Proterozoic (Precambrian), Cambrian, Ordovician, Silurian, Devonian, Carboniferous (or Missisipian and Pennsylvanian in the US) and Permian (Palaeozoic), Triassic, Jurassic and Cretaceous (Mesozoic) and Tertiary and Quaternary (Cenozoic). For a graphical representation, see http://geomaps.wr.usgs.gov/socal/geology/geologic_history/images/geologic_time_scale.jpg
What are the phanerozoic periods in order?
The Phanerozoic Eon is divided into three major eras: the Paleozoic Era, the Mesozoic Era, and the Cenozoic Era. The Paleozoic Era is further divided into six periods: Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian. The Mesozoic Era is divided into three periods: Triassic, Jurassic, and Cretaceous. The Cenozoic Era is divided into two periods: Paleogene and Neogene.
Which era of geological time lasted the longest?
The Paleozoic Era lasted from about 540 million years ago to about 280 million years ago. It included the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian Periods.
