Gorstian

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Epochs in the Silurian
-444 —
-442 —
-440 —
-438 —
-436 —
-434 —
-432 —
-430 —
-428 —
-426 —
-424 —
-422 —
-420 —
-418 —
Epochs of the Silurian Period.
Axis scale: millions of years ago.

In the geologic timescale, the Gorstian is the age of the Ludlow epoch of the Silurian period of the Paleozoic era of the Phanerozoic eon that is comprehended between 422.9 ± 2.5 Ma and 421.3 ± 2.6 Ma (million years ago), approximately. The Gorstian age succeeds the Homerian age and precedes the Ludfordian age.[3]

Palaeontology[edit]

Arthropods[edit]

Arthropods of the Gorstian
Taxa Presence Location Description Images
Brontoscorpio Trimpley, Worcestershire, UK
Balizoma 440.8 million years ago to Pridoli epoch Dudley, England only been found in rocks of Silurian age.
Balizoma variolaris

References[edit]

  1. ^ 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.
  2. ^ 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.
  3. ^ Gradstein, Felix M.; Ogg, James G.; Smith, Alan G. (2004). A Geologic Time Scale 2004. ISBN 9780521786737.