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Arizona Pennsylvanian Perigrinations (Travels)


DPS Ammonite

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EDIT: see complete post below Ynot's brief post.

 

I found some amazing fossils last weekend north and east of Payson, Arizona in the Pennsylvanian aged Naco Formation. Clear skies and warm temperatures were tolerable because of the tree cover.

 

The star of the show was a 40 cm slab with and upside down silicified Syringopora coral colony that showed the basal branches. Mother Nature started the etching process, I continued it with dilute pool acid. For scale, each coralite is about 2mm in diameter.

 

IMG_0566.JPG

IMG_0565.JPG

 

The next star was a 23cm unidentified sponge.

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IMG_0561.JPG

Edited by DPS Ammonite
  • I found this Informative 3

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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32 minutes ago, DPS Ammonite said:

I found some amazing fossils last weekend north and east of Payson, Arizona in the Pennsylvanian aged Naco Formation. Clear skys and warm temperatures were tolerable because of the tree cover.

 

The star of the show was a 40 cm slab with an upside down silicified Syringopora coral colony that showed the basal branches. Mother Nature started the etching process, I continued it with dilute pool acid. For scale, each coralite is about 2mm in diameter.

 

IMG_0566.JPG

IMG_0565.JPG

 

The next star was a 23cm unidentified sponge.

IMG_0560.JPG

IMG_0561.JPG

The big surprise was an unidentifyed possible crinoid that were 0.7 to 1.7cm across. Lively debate in the ID section has yielded no confirmations yet. See: http://www.thefossilforum.com/index.php?/topic/88445-pennsylvanian-crinoid-from-arizona/

 

IMG_0559.JPG

IMG_0564.JPG

 

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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Here are some fossils from the Naco Formation at the Paleo Site near Kohl's Ranch. From top clockwise: bryozoa; Antiquatonia portlockiana; Composita subtilita; Myalina nacoensis; Derbyia crassa.

 

 

IMG_0568.JPG

 

Some nice horn coral.

 

IMG_0569.JPG

 

Last but not least, some tubular sponge roots.

IMG_0573.JPG

  • I found this Informative 3

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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The Syringopora is stunning! :) Love the colour.

And the brachiopods are gorgeous! :wub:

I still think those are crinoids, but goodness knows which one! 

Life's Good!

Tortoise Friend.

MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160-1.png.60b8b8c07f6fa194511f8b7cfb7cc190.png

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Nice fossils! Also points for vocabulary, I need to use the word “peregrination”  more!

“...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin

Happy hunting,

Mason

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