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Fossil or...?

Pilo

By Pilo
in Fossil ID

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Pilo New Member

Pilo

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Found this in the backyard of new home in Northern New Mexico; matrix looks like PA Limestone of the Madera group, which is close by in the Mtns. orange stuff may be geothermal in origin, but also looks like wood. Leaning geologic. Very heavy. Thoughts?

 

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TqB Regular Member

TqB

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Posted

Can't quite see it closely enough to be sure but it looks like Chaetetes (a calcisponge).

Tarquin

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DPS Ammonite Regular Member

DPS Ammonite

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It looks like the sponge Chaetetes that has been silicified. Look for small polygonal openings on top and tabula crosspieces.

 

See mine from Arizona:

http://www.thefossilforum.com/index.php?/topic/87124-arizona-paleontology-literature-by-taxonomy/

 

My goal is to leave no stone or fossil unturned.   

See my Arizona Paleontology Guide    link  The best single resource for Arizona paleontology anywhere.       

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Pilo New Member

Pilo

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Interesting positions...Chaetetes milleporaceus appears to be local in the PAL...Just wish I knew more about provenance. 

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