Aeronian

Epochs in the Silurian

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Mulde event^[1]

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Ireviken
event^[2]

Epochs of the Silurian Period.
Axis scale: millions of years ago.

In the geologic timescale, the Aeronian is the age of the Llandovery epoch of the Silurian period of the Paleozoic era of the Phanerozoic eon that began 440.8 ± 1.2 Ma and ended 438.5 ± 1.1 Ma (million years ago). The Aeronian age succeeds the Rhuddanian age and precedes the Telychian age, all in the same epoch.^[3]

GSSP

The GSSP is located in the Trefawr Track section, 500m north of Cwm-coed-Aeron Farm, Wales, UK. The GSSP lies within the gently-dipping blocky mudstones of the Trefawr Formation, which principally yield abundant and diverse shelly faunas, but also contain enough graptolites to allow recognition of several biozones.^[4]

Palaeontology

Agnathans

Agnathans of the Aeronian
Taxa	Presence	Location	Description	Images
Jamoytius	Rhuddanian-Telychian

Molluscs

Cephalopods

Cephalopods of the Aeronian
Taxa	Presence	Location	Description	Images
Cameroceras	Dapingian-Homerian

References

↑ 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.
↑ "GSSP Table - All Periods". International Commission on Stratigraphy. Retrieved 2018-09-15.
↑ "GSSP for Aeronian Stage". International Commission on Stratigraphy. Retrieved September 15, 2018.

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[Jeppsson2007-1] 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.

[Munnecke2003-2] 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] "GSSP Table - All Periods". International Commission on Stratigraphy. Retrieved 2018-09-15.

[4] "GSSP for Aeronian Stage". International Commission on Stratigraphy. Retrieved September 15, 2018.