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South Texas Upper Cretaceous Spine


CraigHyatt

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Certainly a modern bone. But looks like a vertebra except for the pointy part. Will research when I get home.

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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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By sheer luck, I found similar vertebrae from a small critter that got recently et. Looks to be a miniature of the big one I found. So the big one is just some ordinary animal. I just can't figure what that top spine is. I am missing something obvious here.

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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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Mostly out of my element with Texas fossils but the smaller ones definitely look like fish verts. The large one might be something like a bison vert.

Will wait to see what the experts proclaim.

Cheers.

-Ken

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Thanks! The little one I don't care about. Bison seems like a good call for the bigun. Bison are still extant. That makes sense. The bone isn't mineralized at all. Also, now I understand the spike. Some bison bones from online.

Edit: When I got home, I checked bison, cow, moose, etc. It seems any number of animals have vertical spikes on their vertebrae. Neck vertebrae have the spike but no ribs. Funny I never noticed mammals had spikes like that. Maybe left over from our marine origin.

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Edited by CraigHyatt

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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As I recall the dorsal vertebrae of bison have the lengthened spinous process for the attachment of thick muscles that support the huge head.

Cheers.

-Ken

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As I recall the dorsal vertebrae of bison have the lengthened spinous process for the attachment of thick muscles that support the huge head.

Cheers.

-Ken

Yeah. I have those on my neck, too. It's to support my giant brain. :-P

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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