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Ok...cough Up Your Echinoids!


Frank Menser

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Codechinus rotundus, Aptian, Bulgaria

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Coraster sp., Danian, Bulgaria

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Micraster sp. Turonian, Bulgaria

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Edited by echinoman
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Hi,

Here are mine ! Obviously, they are in my drawers, but if you want to see some of them closer, let me know and I shall redo some photos (according to my availability of time) :

fossil10.jpg

fossil11.jpg

fossil12.jpg

fossil13.jpg

fossil14.jpg

fossil15.jpg

fossil16.jpg

And to finish, a drawer of my recent sea urchins, opened at random

actuel10.jpg

Have a good day ! wink.gif

Coco

Dang Coco! You have an amazing collection!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Process of identification "mistakes create wisdom".

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Hi,

Thanks ! I have about 250 different species of fossil sea urchins and about 160 different recent species.

Coco

  • I found this Informative 1

----------------------
OUTIL POUR MESURER VOS FOSSILES : ici

Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici
Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici
Mâchoires sélaciennes récentes : ici
Hétérodontiques et sélaciens : ici
Oeufs sélaciens récents : ici
Otolithes de poissons récents ! ici

Un Greg...

Badges-IPFOTH.jpg.f4a8635cda47a3cc506743a8aabce700.jpg Badges-MOTM.jpg.461001e1a9db5dc29ca1c07a041a1a86.jpg

 

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I dont think I have contributed to this topic yet... Not that any of mine will top any of yours for showiness but here goes...

These are all from my local Haslam formation, ~84my, and I wish I knew the IDs.

The first one or two are what I call 'pancake echinoids' because they're flat and kind of nondescript - I cant even see the ambulacra on them most of the time, though that spotty sort of 'scale' covering them makes detail hard to see (but easy to spot them in the field) - scale weathered off of specimen on right:

post-4372-0-92846900-1345886846_thumb.jpg post-4372-0-40432100-1345886842_thumb.jpg

I'm not sure of the degree to which they are flattened during compaction (at least a bit), but the smaller ones are sometime fatter (on right):

post-4372-0-40714500-1345886939_thumb.jpg

I can see the ambulacra on the one on right here, but it need prepping like just about everything else I have!:

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From other nearby spots, incl. a small heart urchin similar to one I think 'paleopix' Dan posted on p.5, roughly the same size and same Fm/area:

post-4372-0-66756200-1345887035_thumb.jpg post-4372-0-71685400-1345887210_thumb.jpg post-4372-0-34448900-1345887052_thumb.jpg post-4372-0-60146100-1345887030_thumb.jpg

Edited by Wrangellian
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A couple more: some un-ID'd small Regular echs I found years ago, which, as mentioned elsewhere, were found all together on one rock face (bedding plane) and because I was young and clueless we picked them all off one by one instead of digging out the boulder intact (too much work we thought at the time!). Still kicking myself for that. And to think how much more work I've since put into hauling out less-significant fossils than these, than would have been required here. :faint: Luckily I saved a few with the spines.

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post-4372-0-37976500-1345887901_thumb.jpg

Edited by Wrangellian
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I have many samples of Lovenia forbesi that I picked in in Manum when I was a child, most were weathered out of the rock, so not great detail, still, some good specimens, this is what they look like, wsch mine looked this good.

http://www.sciencephoto.com/image/171994/530wm/E4420732-Sea_Urchin_Fossil-SPL.jpg

I also have a Madagascan sea bicuit which I bought.

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A couple more: some un-ID'd small Regular echs I found years ago, which, as mentioned elsewhere, were found all together on one rock face (bedding plane) and because I was young and clueless we picked them all off one by one instead of digging out the boulder intact (too much work we thought at the time!). Still kicking myself for that. And to think how much more work I've since put into hauling out less-significant fossils than these, than would have been required here. :faint: Luckily I saved a few with the spines.

Very cool!!! I don't know that any regular urchins have ever been described from the entire Nanaimo Group. Those should be publication worthy.

Don

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I know, but who's gonna do that work?? ;)

I'm not sure all of the local Irregulars have been sorted out yet either, someone needs to do that work, if possible with the often crushed specimens we get...

Edited by Wrangellian
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  • 10 months later...
  • 2 weeks later...

welcome back, echinoman!

Grüße,

Daniel A. Wöhr aus Südtexas

"To the motivated go the spoils."

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  • 1 month later...
  • 9 months later...

Hello,

Anorthopygus orbicularis (GRATELOUP, 1836) from portuguese upper cenomanian, approx. 25 mm.

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Regards,

Ricardo

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Here are the three I found in one piece of matrix. I was for certain about one of them. The other two was a wild guess and I am glad I was right.

100_3802_zpsb8f79146.jpg

Hemiaster calvini

Cretaceous Period

Del Rio part of the Grayson Formation

Lake Waco Research Area, Waco, Texas.

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  • 7 months later...

I believe this one is interesting...

Heterodiadema libycum (DESOR, 1846) with scrobicular spines, Calcários Apinhoados da Costa D'Arnes formation, Upper Cenomanian, Portugal.
35 mm.
Regards,
Ricardo

post-8589-0-30673200-1424084021_thumb.jpg

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  • 3 weeks later...

Pseudocidaris cf. clunifera, Lovech Urgonian Complex, Bulgaria

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The picture was taken during the first amateur paleontology show/exhibition in Bulgaria :)

Edited by echinoman
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  • 4 months later...

Very nice specimens, Nikolai.

The human mind has the ability to believe anything is true.  -  JJ

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  • 3 weeks later...
  • 2 weeks later...

Nice collections!

Here are mine:

Hemiaster sp.,Cretaceous,Montemor-o-Velho (Portugal)

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Cidaroid radiolas,Jurassic,Torres Vedras (Portugal)

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Echinoid spine, Jurassic Dogger,Porto de Mós (Portugal)

post-18967-0-74955700-1441578877_thumb.jpg

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  • 5 months later...

I found my first and only Echinoid (so far) aside a wet creek bed Sept. 29, 2015, Cibolo Nature area in Boerne, TX (24 mi. NW of San Antonio)

Help ID?

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Edited by Tguiri

'There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.

- Ernest Hemingway

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