Sponge, mineral or else ?

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fifbrindacier
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Sponge, mineral or else ?

Bericht door fifbrindacier » 02 jun 2018, 18:31

Afbeelding

Afbeelding

Hi everybody.
I found that piece in a pile of rejection from an ancient quarry, among inocerams, and traces of ammonites.
I really have no idea of what it can be : ammonite chambers, sponge, algae, else... ?
It is about 3,2 cm long and 1,7 cm wide.

Location : South-west of France.
Stage : campanian.

Thank you in advance for your help.

Sophie.

[Edited by fifbrindacier on 02-06-2018 at 17:38 GMT +1]



 
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Spongebob
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Re: Sponge, mineral or else ?

Bericht door Spongebob » 03 jun 2018, 12:37

Definitive a spongebody, I think.
But it's hard to put the right name on these sponges without examining the skeletal network closely. With a body composed of anastomosing tubes with such thin walls you can think about Eurete or Plocoscyphia but there are some more possible species.
I should leave it on 'Hexactinellid sponge' first ;)


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fifbrindacier
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Re: Sponge, mineral or else ?

Bericht door fifbrindacier » 04 jun 2018, 08:55

Afbeelding

Afbeelding

Afbeelding

Afbeelding

Afbeelding

Thanks Spongebob.

I broke it open to see how it was Inside.
Here are the photos.




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