Talk:Geology of Wales

Improving this article

The Geology of Wales is a big topic so the question as to how best to structure the article is an an important one. One could take a chronological approach - Precambrian through to Quaternary for the country as a whole or else a region by region approach - both have things to commend them and things that do not. By the way I think there is a good argument for merging the geology of South Wales into this article. Others may differ of course! The British Geological Survey have recently thought it best to merge their previously separate treatment of north and south Wales into one regional memoir. I may make a start on some or all of this at some point but if anyone else wants to do it in the meantime go right ahead! Geopersona (talk) 19:55, 8 March 2010 (UTC)

So, I've now made a substantial change to the entire article. It appeared previously like the assmeblage of Wales' geological terranes to have been accreted from various other articles in an unwieldy way with large chunks of material on the 'tectonics of Avalonia' and the 'geography of Wales' being used rather than a focus on the country's geology per se. There are other pages available on these topics - they need only be referred to briefly or linked to from here. There remains work to be done and sections to be expanded but this is a useful start - at least that's what I think. cheers Geopersona (talk) 21:31, 5 January 2012 (UTC)

I'm aware that I need to add various references and will do this shortly. cheers Geopersona (talk) 21:37, 5 January 2012 (UTC)

I have currently placed brief descriptions of both the Caledonian and Variscan orogenies as sections in the system-by-system description of Wales' geology but they may be better taken outside of that - thoughts? cheers Geopersona (talk) 06:44, 10 January 2012 (UTC)

I think it's looking good, I noticed a few articles with details on some of the Terranes, so perhaps they might be linked perhaps. EdwardLane (talk) 10:42, 22 June 2012 (UTC)

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A Middle Ordovician Burgess Shale-type fauna from Castle Bank, Wales

2023 paper in Nature Ecology & Evolution: https://www.nature.com/articles/s41559-023-02038-4.epdf Complete text online. Abstract: Burgess Shale-type faunas are critical to our understanding of animal evolution during the Cambrian, giving an unrivalled view of the morphology of ancient organisms and the ecology of the earliest animal-dominated communities. Rare examples in Lower Ordovician strata such as the Fezouata Biota illustrate the subsequent evolution of ecosystems but only from before the main phase of the Great Ordovician Biodiversification Event. Later Ordovician Konservat-Lagerstätten are not directly comparable with the Burgess Shale-type faunas as they do not represent diverse, open-shelf communities, limiting our ability to track ecological development through the critical Ordovician biodiversification interval. Here we present the Castle Bank fauna: a highly diverse Middle Ordovician Burgess Shale-type fauna from Wales (UK) that is directly comparable with the Burgess Shale and Chengjiang biotas i n p al ae oe nv ir onment and preservational style. The deposit includes animals with morphologies similar to the iconic Cambrian taxa Opabinia, Yohoia and Wiwaxia, combined with early examples of more derived groups such as barnacles. Many taxa such as kinorhynchs show the small sizes typical of modern faunas, illustrating post-Cambrian miniaturization. Castle Bank provides a new perspective on early animal evolution, revealing the next chapter in ecosystem development following the Chengjiang, Burgess Shale and Fezouata biotas. Pete Tillman (talk) 03:23, 3 May 2023 (UTC)

Summary here at CNN: https://www.cnn.com/2023/05/01/world/wales-fossil-site-scn/index.html --Pete Tillman (talk) 03:26, 3 May 2023 (UTC)