Imprecise. Near FAD of the graptolite Saetograptus leintwardinensis
Upper boundary definition candidates
None
Upper boundary GSSP candidate section(s)
None
Upper boundary GSSP
Sunnyhill, Ludlow, England 52°21′33″N2°46′38″W / 52.3592°N 2.7772°W / 52.3592; -2.7772
Upper GSSP ratified
1980[4]
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 Graptolites tumescens and Graptolites incipiens. The type section is located in a quarry in the Elton Formation at Pitch Coppice, Shropshire, United Kingdom.[6]
^Jeppsson, L.; Calner, M. (2007). "The Silurian Mulde Event and a scenario for secundo—secundo events". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 93 (02): 135–154. doi:10.1017/S0263593300000377.
^Munnecke, A.; Samtleben, C.; Bickert, T. (2003). "The Ireviken Event in the lower Silurian of Gotland, Sweden-relation to similar Palaeozoic and Proterozoic events". Palaeogeography, Palaeoclimatology, Palaeoecology. 195 (1): 99–124. doi:10.1016/S0031-0182(03)00304-3.
^"Chart/Time Scale". www.stratigraphy.org. International Commission on Stratigraphy.
^ abcHolland, C. (1982). "The State of Silurian Stratigraphy" (PDF). Episodes. 1982: 21–23. Retrieved 11 December 2020.
^Gradstein, Felix M.; Ogg, James G.; Smith, Alan G. (2004). A Geologic Time Scale 2004. ISBN 9780521786737.
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...
in Shropshire, England. The Ludlow Epoch is subdivided into two stages: Gorstian and Ludfordian. Ludlow Group Jeppsson, L.; Calner, M. (2007). "The Silurian...
GSSP) of the Sheinwoodian. The end is defined as the base (or GSSP) of the Gorstian. The Wenlock is divided into the older Sheinwoodian and the younger Homerian...
brachiopod. Craniops speculum Sp. nov Benedetto, Lavié & Salas Silurian (Gorstian) Los Espejos Formation Argentina A craniopsid brachiopod. Deloprosopus...
approximately. The Homerian Age succeeds the Sheinwoodian Age and precedes the Gorstian Age. The name comes from the small village of Homer, Shropshire near Much...
Baragwanathia Temporal range: Early Ludlow (Gorstian, late Silurian) - Early Devonian PreꞒ Ꞓ O S D C P T J K Pg N Fossil of Baragwanathia found in Victoria...
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