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Need ID


PaleoWilliam

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I can't help you on ID but i'm digging the NSR ribs or whatever it is.

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Rib from NSR is a fish fin.

Mineral is aragonite and/or calcite from part of a concretion.

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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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Gastropod. NSR. 1 1/2 inches.

Not much surface ornamentation left to help ID. Might be an Anchura substriata or Turritella trilura based on photo in "Fossil Collector's Guidebook to the North Sulphur River" by the Dallas Paleontological Society.

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Edited by DPS Ammonite

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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Ammonite from Texas or Oklahoma. It is almost 5 inches.

Calycoceras tarrantense from the Woodbine Fm. My opinion...experts please confirm.

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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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Nautilus. Texas. 5 inches.

A locality and better exposed sutures would help with ID. I suggest that it might be Paracymatoceras or Cymatoceras sp.

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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A locality and better exposed sutures would help with ID. I suggest that it might be Paracymatoceras or Cymatoceras sp.

I bought this with no location.
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For this and the ammonites on your other thread, can you check for suture lines under magnification? If you can document any suture patterns, that will help with the ID.

Info: Craig Hyatt, retired software/electrical engineer

Experience: Beginner, fossil hunting less than a year

Location: Eagle Pass, TX USA on the border with Mexico, hot dry desert

Formation: Escondido, Marine, Upper Cretaceous

Materials: Sandstone, Mudstone, Shale, Chert, Chalk

Typical: Thalassinoides, Sphenodiscus, Exogyra, Inoceramus

Reference: http://txfossils.com/Txfossils.html

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I agree on the fish fin ID by DPS Ammonite

Mike

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Also, if you take photos of the whorl cross-section of the ammonites, it might help. :)

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"We only well see with the heart, the essential is invisible for the eyes."

 

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William, your best bet is to take the rock with the gastropods into a Dallas Paleo meeting. Seeing the rock in person might jog someone's memory.

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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Getting a positive ID for gastropods requires completely different preservation than for ammonites. While the distinctive sutures of each species of ammonite are only visible on an internal mold the ornamentation needed to identify a gastropod is not found there. Your snails without location information will just have to settle for the broader label of the class. The one from the Sulphur River might be labeled as probably one of those suggested by DPS Ammonite because they are commonly found there but it is just not possible to say for sure since it does not show us the external surface. A label should contain as much information as we can gather without unverified speculation.

Edited by BobWill
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I bought this with no location.

Why? A fossil with no location is just an interesting looking rock.

Don

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