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Showing results for tags 'heliolites'.
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TqB posted a topic in Member CollectionsA few old collection specimens of Devon coral that I've acquired over the years. In scarce supply now, the south Devonshire area around Torquay and Teignmouth was once (mainly 19th and early 20th c) the centre of an ornamental "marble" industry. Much of it went into high class interiors (floors, pillars etc.) but there was a large usage of small pieces for ornamental objects (desk furniture, trinket boxes) and also as inlay pieces for magnificent tables. Fossil specimens were also specifically sold as such. It's not a true marble but a range of well compressed, heated and mineralised limestones that has a range of colours and takes a fine polish. I haven't yet worked out detailed stratigraphy for any of these specimens but they're Middle and Upper Devonian. Apologies for the scratches on some of them - I haven't yet refinished them either. The brass scale is 1cm long. First, a couple of little tablets of Frechastraea sp. 2nd piece: And the only other rugose one so far, a Phillipsastraea sp. that has been fractured and subsequently stylolitised with pink/red veins - this is common in a lot of limestone from the area.
Hoooooooooooorrrrrrrrrrrraaaaaaayyyyyyyyyyy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Here we are at last, into Adam's Silurian. Thanks for looking. First up is the Lower Silurian or Llandovery and I begin with a problem. I posted this one incorrectly in Adam's Ordovician as it had got it's label muddled up with an Ordovician Favosites I had that has vanished in the move here, but is being replaced by kind forum member @Herb Anyway, this, I remember now I've found the correct label, is from the greenish Browgill Formation, part of the Stockdale Group from a cutting near Skelgill (Skelghyll) in Cumbria, Northern England. It seems to be a tabulate coral, but I can't find any listed for this location, only mentions of small, rare, rugose corals. It has the star shaped corallites of a Heliolitidid, but seems to be tightly packed together like a Favositidid. A couple of species of Palaeofavosites seem to be close and are a bit star-shaped,, but anyone know any better? @TqB@piranha hmm who else? The coral bit, an external mold, is a maximum of 3.5 cm across and each corallite up to 2 mm.