tqb
Enthusiastic fossilologist
Posts: 111
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Post by tqb on Mar 6, 2011 15:09:34 GMT -5
Squashed goniatite or something else? - same bed as the previous one (Brigantian shale, N.E. England). Goniatite fragments are apparently quite common here and I didn't see anything else like one - I can't see any sutures though so perhaps it's a gastropod?. Attachments:
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Post by pleecan (Peter Lee) on Mar 6, 2011 17:48:01 GMT -5
I don't see any sutures eithernot goniatite... could be a gastropod or brachiopod....
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Post by Joe Botting on Mar 6, 2011 19:50:39 GMT -5
I'm thinkingan impression of the flat end of a rostroconch here. They're not common, but they turn up occasionally...
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tqb
Enthusiastic fossilologist
Posts: 111
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Post by tqb on Mar 7, 2011 5:53:41 GMT -5
Thanks Peter & Joe,
Rostroconch is a good idea, I saw some 3D Visean ones once somewhere in S. Wales but never from Durham.
I have another fragment and suspect that an old Yorks Geol Soc field trip found them too, tentatively identified then as goniatite.
I'll go for another look soon.
My wife found this one!
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tqb
Enthusiastic fossilologist
Posts: 111
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Post by tqb on Nov 7, 2011 13:27:47 GMT -5
Quick update on these - I've just found faunal lists of the couple of cyclothems below this one and they include Conocardium sp. and C. alaeforme J. de C. Sowerby, so thanks again Joe! - might be a new one for this horizon.
PS I've now found some definite goniatites in nodules from the cyclothem above this - can't find any records of others from this bed (apart from fragmentary indeterminate ones) so they might be of interest to someone.
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Post by Joe Botting on Nov 7, 2011 21:55:35 GMT -5
That is interesting - good detecting, Tarquin. I'm not sure there's anyone working on the fine distribution of faunas in these beds at the moment, but if you can piece together a fine-scale faunal distribution log then it will be well received by posterity, at the very least.
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