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Showing results for tags 'weardale'.
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Micro heteromorphic silicified ?gastropod ?microconchid Mississippian, England
TqB posted a topic in Fossil ID
Does anyone recognise this tiny silicified shell? It's about 2mm long. I haven't seen one like it before from the Carboniferous. From the Great Limestone (upper Mississippian, Pendleian Stage) from Weardale, Co. Durham, England. From a piece I've been dissolving in acid, containing silicified brachiopods, gastropods etc. It starts off with an open helical spiral (3rd photo) and then straightens out. It also has clear annular ribs. Although the preservation is imperfect and sugary, I'm sure it's shell replacement rather than internal mould, judging from other fossils in the pece. The various serpulid-like gastropods and microconchids I've come across elsewhere don't have the regular ribbing.- 4 replies
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- 6
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- aberrant
- carboniferous
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From the album: corals
Section just below top of the calice, showing central lamella and other axial structures continuing into central boss. Great Limestone, Weardale, County Durham, UK.-
- bipartitum
- carboniferous
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From the album: corals
Section showing incomplete central lamella characteristic of the subspecies konincki. Great Limestone, Weardale, County Durham, UK.-
- bipartitum
- carboniferous
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From the album: corals
Section showing incomplete central lamella. Great Limestone, Weardale, County Durham, UK.-
- bipartitum
- carboniferous
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(and 5 more)
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From the album: corals
"Standard" D. bipartitum section showing complete central lamella. Great Limestone, Weardale, County Durham, UK.-
- bipartitum
- carboniferous
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(and 5 more)
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