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A fossil bivalve from Ringstead Bay

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Joydip View Drop Down
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    Posted: 08 Apr 2012 at 9:38pm


One of my recent finds from amongst the rocks on Ringstead Bay....
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joydip Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2012 at 9:43pm


side-view.....
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Post Options Post Options   Thanks (0) Thanks(0)   Quote albianphil Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2012 at 10:06pm
I think Trigonia
Philippe
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Post Options Post Options   Thanks (0) Thanks(0)   Quote prep01 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2012 at 10:06pm
Hello Joy, I think it's Laevitrigonia sp. Is it from the Portlandian? I don't know Ringstead are very well!
Colin Huller
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rooniehopperbob Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2012 at 10:28pm
Its a trig corallion bad spelling sorry
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joydip Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2012 at 10:32pm
Thanks AlbianPhil and Colin
I am afraid my geology is not up to the scratch, so sorry for not knowing if it is Portlandian. If it makes any sense, I found it at the rocky end of the beach with large flat step-like rocks. I posted an in situ picture of another of these on the in situ thread if that helps.
Joydip



Here is a different one, the matrix is greenish and speckled.



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andy333 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote andy333 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2012 at 10:40pm
Hi Joydip
That looks like a Neithea gibbosa from the upper greensand.
Andy
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Joydip View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joydip Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2012 at 10:46pm
Thanks Bob
Thanks Andy
There were many giant fossil oysters, worm tubes and coral (I think) in the clay.
Hope to post some more photos soon.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Naze Dave Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2012 at 11:58pm
I found Ringstead quite disappointing, we only collected a few giant oysters and that was it, looks like you already did better than us, what did you make of the place?
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Dave
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Joydip View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joydip Quote  Post ReplyReply Direct Link To This Post Posted: 11 Apr 2012 at 1:33am
Hi Dave
My experience was similar. Although I found a bit more than those ubiquitous oysters, I wasn't impressed. I had hoped to find at least one ammonite in the Kimmeridge clay, but was disappointed.
Will post photos of the other finds soon, unfortunately very averageUnhappy
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Joydip
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HerzegovinaGeo Quote  Post ReplyReply Direct Link To This Post Posted: 11 Apr 2012 at 6:42am
Joydip I think it's Myophorella -  see pictures on google - it's very similar to your example

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Bill G View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill G Quote  Post ReplyReply Direct Link To This Post Posted: 11 Apr 2012 at 10:03am
I agree with the first being Myophorella sp. See www.southampton.ac.uk/~imw/ click on Osmington fossils

Edited by Bill G - 11 Apr 2012 at 10:06am
Cheers, Bill
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joydip Quote  Post ReplyReply Direct Link To This Post Posted: 11 Apr 2012 at 8:49pm
Hi
Thank you both for the id. Thanks Bill for the link to the Osmington fossils pictorial chart.Smile
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joydip Quote  Post ReplyReply Direct Link To This Post Posted: 11 Apr 2012 at 11:39pm


Here's one of the 'giant' oysters from the clay at Ringstead Bay.
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Naze Dave View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Naze Dave Quote  Post ReplyReply Direct Link To This Post Posted: 12 Apr 2012 at 4:34pm
Nice, you may know already but the species of the oyster is Deltoideum delta.
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Dave
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Bill G View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill G Quote  Post ReplyReply Direct Link To This Post Posted: 12 Apr 2012 at 4:43pm
Yep, D. delta as Dave said. I have a couple with articulated valves from Bowleaze Cove.
Cheers, Bill
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Naze Dave Quote  Post ReplyReply Direct Link To This Post Posted: 12 Apr 2012 at 4:45pm
Dont know about you Bill but the Bowleaze Cove ones felt a little more robust to me, like they were slightly less likely to fall apart.
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Dave
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Bill G View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill G Quote  Post ReplyReply Direct Link To This Post Posted: 12 Apr 2012 at 4:53pm
I agree they're very robust Dave, but can't comment on the ones at Ringstead, never collected there. Though Joydip's specimen looks pretty good.

Edited by Bill G - 12 Apr 2012 at 4:54pm
Cheers, Bill
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Naze Dave View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Naze Dave Quote  Post ReplyReply Direct Link To This Post Posted: 12 Apr 2012 at 4:56pm
Having been to both locations id say the Ringstead ones are bigger but are also much more likely to just fall apart. JD, have you ever been to Bowleaze Cove?
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Dave
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joydip Quote  Post ReplyReply Direct Link To This Post Posted: 12 Apr 2012 at 11:02pm
Hi Dave
I haven't been to Bowleaze Cove yet. Are there many interesting finds to be found there including Deltoideum ?
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Joydip
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