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Escondido Formation, Upper Cretaceous ammonite?


CraigHyatt

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I wasn't going to post this because it was in such bad shape. Is it also an ammonite? From Escondido Formation, Upper Cretaceous.

post-20989-0-52989500-1466031777_thumb.jpeg

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 wasn't going to post this because it was in such bad shape. Is it also an ammonite? From Escondido Formation, Upper Cretaceous.

attachicon.gifimage.jpeg

It looks like one to me.
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It looks like one to me.

Thanks. I didn't know they could be that tiny. :-)

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 wasn't going to post this because it was in such bad shape. Is it also an ammonite? From Escondido Formation, Upper Cretaceous.

attachicon.gifimage.jpeg

Scaphites sp., Craig?

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Scaphites sp., Craig?

Let me research it Guguita. Thanks for the tip! It is just a fragment I picked up yesterday while I was looking for shark vertebrae. I tossed it in my bag as an afterthought. :-)

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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Let me research it Guguita. Thanks for the tip! It is just a fragment I picked up yesterday while I was looking for shark vertebrae. I tossed it in my bag as an afterthought. :-)

In fact, I think the specimen is almost complete :D (but I'm not sure).

Edited by Guguita2104
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In fact, I think the specimen is almost complete :D (but I'm not sure).

Awesome! I will study it closely. I out hiking now in our beautiful desert just next to the Rio Grand on the border with Mexico. As I look around, I am thinking that I probably pass right by a giant mosasaur flipper and never see it. And when I sit down to rest, I see all sorts of tiny fossil bits in the dirt. Until I learn a lot more, I am like a blind man out here. But you gotta start somewhere. As Goethe said "Aller Anfang ist schwer." :-)

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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Awesome! I will study it closely. I out hiking now in our beautiful desert just next to the Rio Grand on the border with Mexico. As I look around, I am thinking that I probably pass right by a giant mosasaur flipper and never see it. And when I sit down to rest, I see all sorts of tiny fossil bits in the dirt. Until I learn a lot more, I am like a blind man out here. But you gotta start somewhere. As Goethe said "Aller Anfang ist schwer." :-)

Fantastisch Satz!

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No doubt an ammonite, and I too think it is almost complete. Great find. Each time something new like this is found and ID'd it sharpens the eye for the next trip. No telling what you will find next!!!!

Bulldozers and dirt Bulldozers and dirt
behind the trailer, my desert
Them red clay piles are heaven on earth
I get my rocks off, bulldozers and dirt

Patterson Hood; Drive-By Truckers

 

image.png.0c956e87cee523facebb6947cb34e842.png May 2016  MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160.png.b42a25e3438348310ba19ce6852f50c1.png May 2012 IPFOTM5.png.fb4f2a268e315c58c5980ed865b39e1f.png.1721b8912c45105152ac70b0ae8303c3.png.2b6263683ee32421d97e7fa481bd418a.pngAug 2013, May 2016, Apr 2020 VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png.af5065d0585e85f4accd8b291bf0cc2e.png.72a83362710033c9bdc8510be7454b66.png.9171036128e7f95de57b6a0f03c491da.png Oct 2022

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But you must know this one:

Wow! That's a dynamite ammonite! I wonder what about its environment allowed it to get so huge?

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 think (practically)unlimited food resources might have something to do with it.

I don't know where that pic was taken Craig,might have been Germany.Parapuzosia IS found in the cretaceous of the US,BTW

Primary production was high in the Cretaceous

Edited by doushantuo

 

 

 

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Wow! That's a dynamite ammonite! I wonder what about its environment allowed it to get so huge?

I've seen evidence of some nearly 5 feet in diameter in Central Texas. This was a 4 footer. ;)

The human mind has the ability to believe anything is true.  -  JJ

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I've seen evidence of some nearly 5 feet in diameter in Central Texas. This was a 4 footer. ;)

I have seen a nautilus in an aquarium, so it's easy to imagine an ammonite swimming along. I am staring at the wall imagining a 5 ft ammonite going by. That must have been a sight to behold.

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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Mehr einfach mit Zeit!

Grüße,

Daniel A. Wöhr aus Südtexas

"To the motivated go the spoils."

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