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Two Louisiana Crabs


OneOneNiner

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OneOneNiner

Here's a few pics of the two crabs that I found in Washington Parish Louisiana.

Enjoy!

7a709f41-7af0-4348-9449-78daaa16d048_zps

b4721fc1-ed35-47e4-8148-8ebf72337397_zps

994b6ddf-36e8-448f-9b21-e4323ebc2ef4_zps

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fossilized6s

Im no expert, but i see internal molds of bivalves.

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Oxytropidoceras

fossilized6s wrote,

 

"Im no expert, but i see internal molds of bivalves."

 

I would agree completely that they are both internal molds of bivalves.

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On 4/18/2015 at 8:00 PM, fossilized6s said:

Im no expert, but i see internal molds of bivalves.

 

On 2/3/2017 at 3:52 AM, Oxytropidoceras said:

fossilized6s wrote,

 

"Im no expert, but i see internal molds of bivalves."

 

I would agree completely that they are both internal molds of bivalves.

(Bit of an old topic, sorry...) 

I'm having a lot of trouble seeing bivalve steinkerns here. What made you guys say that?

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Oxytropidoceras

I need to correct myself on this one. I meant to say "internal cast," instead of "internal mold," of a bivalve. Basically, that is what they look like. In the lower fossil of the bottommost picture, the pointed cast of the inside off a bivalve's umbo (beak)  is the distinguishing feature.

 

A picture can be seen in pelecypod internal cast-6

http://skywalker.cochise.edu/wellerr/fossil/pelecypod/fla06.htm

http://www.thefossilforum.com/index.php?/topic/67878-bivalve-internal-mold/

 

Umbo (bivalve) - https://en.wikipedia.org/wiki/Umbo_(bivalve)

 

Also look at Cucullaea corioensis McCoy, 1876 in “The Fossils of

the Urban Sanctuary: Rickett's Point Victoria 3193" by Fearghus

McSweeney & John Buckeridge” at:

http://www.iubs.org/fileadmin/user_upload/Other-Publications/281-Ricketts-Point-Fossils_McSweeney-and-Buckeridge.pdf

 

Yours,

 

Paul H.

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