Gorstian
Sixth stage of the Silurian
Gorstian | |||||||||||||||
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427.4 ± 0.5 – 425.6 ± 0.9 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ | |||||||||||||||
Paleogeography of the late Gorstian, 425 Ma | |||||||||||||||
Chronology | |||||||||||||||
In the geologic timescale, the Gorstian is an age of the Ludlow Epoch of the Silurian Period of the Paleozoic Era of the Phanerozoic Eon that is comprehended between 427.4 ± 0.5 Ma and 425.6 ± 0.9 Ma (million years ago), approximately. The Gorstian Age succeeds the Homerian Age and precedes the Ludfordian Age.[5] The age is named after Gorsty village southwest of Ludlow. The base of the age is marked by Saetograptus (Colonograptus) varians. The type section is located in a quarry in the Elton Formation at Pitch Coppice, Shropshire, United Kingdom. References
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Cenozoic Era (present–66.0 Ma) |
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Mesozoic Era (66.0–252 Ma) |
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Paleozoic Era (252–539 Ma) |
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Proterozoic Eon (539 Ma–2.5 Ga) |
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Archean Eon (2.5–4 Ga) | |||||||||||||||
Hadean Eon (4–4.6 Ga) | |||||||||||||||
ka = kiloannum (thousands years ago); Ma = megaannum (millions years ago); Ga = gigaannum (billions years ago). See also: Geologic time scale • Geology portal • World portal |
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