Ceph ? Non ceph - the mystery object !

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here it is folks, a conical spiral Toarcien, Upper Liassic, Lower Jurassic up to 189.5mya (found inches from an Harpoceras & an Hildoceras bifrons
it's 40mm tall & 30mm dia at fat end.
nothing like it it any of my reference books except turrilites but they're of the Cretaceous so that's a :P
all yours !

 

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WhiteKiboko

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seems to be some sort of unfinished pastry by an belemite just learning the way around the kitchen....

by the way thats some nice grafitti in the background... :smile:
 

WhiteKiboko

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spartacus said:
I'll pen that in as a "not sure" then ?

Aha!! i looked up 'phragmocone' and it was described as a prehistoric attempt at a scone.....

sorry... i promise ill be quiet from here out....
 

Phil

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spartacus said:
that's a good answer & I see where you're coming from.
do belemnites get that big ? & would it have coiled structure ?

Some belemnites did get that large, and some even larger. Megateuthis had a rostrum or guard at least 50cm long with the entire animal probably measuring at least three meters or so in length, though off the top of my head I don't know if those are found in your area. Mind you, if your 'mystery object' is spiralled and not a cone of concentric rings then it probably isn't a belemnite after all. Maybe a gastopod of some type?
 

neuropteris

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Hi Spartacus

I pretty certain its not a scone (though I have been to some cafes where you'd begin to wonder!). my guess is belemnite phragmocone. Attached is a pic of one from the same age rocks of Ravenscar in Yorkshire.

All the best


Andy
 
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cthulhu77 said:
I have attempted to eat british scones that were that hard...

I think you"ll find they were "Special export" scones you tried as our :usa: friends have evolved to have a larger & more numerous dentition than the original Anglo-European species. You may find you're perhaps a genetic throwback who still sports ickle native chops comme ça ! :heee:

Rejoice in your uniqueness & consider every weakness something special of your own ! :lol: (free scone to whoever names that song 1st)

Phil, you amaze me ! you've been bathing in Omega 3 again, haven't you !
3m belemnite, sheesh, I thought they were small fry - hence my education speeds forward towards the bright light of ultimate knowledge :notworth:

Jean, erudite one of the southern hemisphere :grad: me too but a shame if so as ceph is way cooler as we all know within these hallowed virtual walls. :roll:

Andy, (that Andy ?) you've snapped one already but tanned. Going on the abundantessness of Hildoceras of the Yorkshire area I believe we've solved the mystery in an impresssive short space of time :drwho:
My huge thanks to all involved, scones included - belemnitic phragmocone it is :notworth:
 

AndyS

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Spartacus,

Not that Andy (if you were talking about me, that is...)
- Neuropteris/Andy was faster this time -
though I admit I opened the belemnite drawer, looked at a specimen that when found in situ had the phragmocone still attached, thought it in need of a bit of prep to be presentable and lost the race !
Oh well, damn perfectionism, here it comes (attached, err.. unattached ) !
It was found in the upper lias, tenuicostatum subzone of Runswick Bay, UK
and measures 8 inches / 21 cm in total ( 5" / 13 cm guard, 3"/ 8 cm phragmocone)

AndyS
 
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it was indeed your goodself of whom I spoke :biggrin2:
sorry the mystery object never got to your forum (well done on your promotion by the way) but the Tonmo crew did the biz.

I found what was a honking belemnite for me at Pakefield that I'd forgotten I had, must did it out & give it a scan as they tend to be the unsung heroes of fossildom compared to their curly cousins :ammonite:

Keef
 

neuropteris

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Mystery object

Hi Spartacus, AndyS and all

Well, I've just taken this pic and then found t'other Andy has gone and put one on aswell. Never mind - here's another picture of a Grey Shale Belemnite/Phragmocone combo also from Runswick Bay area - they are quite commonly found together in that stratum and get to a fair size. Often the Phragomcone has a nodule around it and the guard sticks out of the end.

Andy
 

Phil

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Both Andys, fantastic specimens, thanks for posting them.

Here's another phragmocone, this one slightly later dated to the Lower Oxfordian Age of the Jurassic (157-159m-ish) and came from somewhere in France. Unfortunately I don't know the species, though it could very possibly be Cylindroteuthis. It has been slightly crushed and measures about 30mm in length.

phragmocone_481.jpg
 
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