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Permian Trilobite from so many pieces...


Arizona Chris

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Hi all,

 

Im no paleo artist, but here is my one small step beyond stick figures drawing of what we got when we put together all the parts of the trilobite from the Fort Apache Limestone near Payson.  We never found a whole one, but all the parts from molts were eventually revealed.  While the major paper on the trilobites from 1960s listed the only trilobite found here was Anisopyge, we are not seeing this - I think it is Ditomopyge.  All three pygidiums found do not match anisopyge!  Anyway, here is my attempt at the recreation.  Ok, you can start throwing tomatoes now.

FtApacheTril-1024.thumb.jpg.ae34a5932e74182be2f9b54b1d13e66f.jpgO

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Arizona Chris

Paleo Web Site:  http://schursastrophotography.com/fossiladventures.html

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Great drawing! My only feedback is to remove the border around the thoracic pleurae. This border should only be around the pygidum.

 

The AMNH has a wonderful Ditomopyge that illustrates this point: https://www.amnh.org/our-research/paleontology/paleontology-faq/trilobite-website/gallery-of-trilobites/permian-period-trilobites/permian-trilobites/

Regards, Jason

 

"Trilobites survived for a total of three hundred million years, almost the whole duration of the Palaeozoic era: who are we johnny-come-latelies to label them as either ‘primitive’ or ‘unsuccessful’? Men have so far survived half a per cent as long."  - Richard Fortey, Trilobite: Eyewitness to Evolution.

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That one looks great!

 

I attempted drawing trilobites a few times, but to no avail. They seem a lot easier to draw than they actually are...

Max Derème

 

"I feel an echo of the lightning each time I find a fossil. [...] That is why I am a hunter: to feel that bolt of lightning every day."

   - Mary Anning >< Remarkable Creatures, Tracy Chevalier

 

Instagram: @world_of_fossils

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Well, this is my first attempts ever at drawing paleo stuff.  Yeah, lots of mistakes.  the next drawing I promise will be more accurate!

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Arizona Chris

Paleo Web Site:  http://schursastrophotography.com/fossiladventures.html

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22 hours ago, Arizona Chris said:

...I think it is Ditomopyge.  

 

 

Previously I pointed out to you that Anisopyge has a medial preoccipital lobe.

Ditomopyge also has this feature, absent from your specimens.  I would label it: Phillipsiidae indet.

 

IMG.jpg.7c35307448824ae25ce27206d4f75132.jpg

image.png.a84de26dad44fb03836a743755df237c.png

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Thank you Scott for your invaluable input.  I feel more confident now that I have finally been able to get a rough re creation of this enigmatic trilobite from the scores of small pieces we have collected.  With this new interpretation, and your highly observant advice, I will now go to my paleo page on this trilobite and update the new information and feel confident we have indeed a different trilobite than Winters had found in Memoir 89. (Anisopyge inornata).   Until we find a totally compete one, this is the best we can do at this time.  Thank you all for your helpful inputs, and helping make my very first paleo drawing a success!

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Arizona Chris

Paleo Web Site:  http://schursastrophotography.com/fossiladventures.html

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