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Unknown Invertebrate? Fossil I.D. request


Stegonick23

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Hello everyone! A friend of mine was just given a group of fossils from a relative and has very little/no info on them. Through searching through this forum, we were able to I.D. most of the pieces, but this one we were unable to recognize and were hoping someone could help. There is no locality information associated with it unfortunately. Thank you everyone for your time/help, I really appreciate it!

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The first thing that comes to mind is a hexactinellid sponge, with a texture like Hydnoceras for example - though maybe the relief is the wrong way round for it to be an impression? 

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Tarquin

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I tend to agree with Tarq's opinion about it possibly being poriferan.

Quadratic meshworks make me think of eg Protospongia(WHICH IS NOT MY opinion of which sponge it could be,BTW

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Hydnoceras has distinct protruberances.  Instead it compares with similar tubular genera like Dictyospognia.

 

Hall, J., Clarke, J.M. 1898
A Memoir on the Palaeozoic reticulate sponges constituting the Family Dictyospongidae.
New York State Museum Memoir, 2:1-350   LINK

 

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some of you may like:

The Great Glass-Sponge Colonies of the Devonian; Their Origin, Rise, and Disappearance
Author(s): John M. Clarke
The Journal of Geology, Vol. 28, No. 1 (Jan. - Feb., 1920), pp. 25-3

 

30064837 (1).pdf

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3 hours ago, Stegonick23 said:

Hello everyone! A friend of mine was just given a group of fossils from a relative and has very little/no info on them. Through searching through this forum, 

IMG_20200111_234107.jpg

 

:envy:

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  • 2 weeks later...

Just came across this and have to say, congrats! Very nice. (My first instinct was hexactinellid sponge, too, given the netlike pattern.)

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