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My Jurassic Park - Birds/Ptero/Unknown Hell Creek & Lance Formations


Troodon

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Bird and Pterosaur material is extremely rare in the Hell Creek and Lance Formations.  Over the years I've purchased and found a few bones that I believe fit this category but not certain.  Some may be mammal or reptilian.  I'm not a bird guy so if you see something that does not seem right please let me know.   Not a lot is published so I'm always open to learning.

 

Hesp.thumb.jpg.a0a8a5e1eb7a386ed4cd66a0a818982c.jpg

 

Humerus.thumb.jpg.ae1fb6daa97bd8e55b032e7dd7f124d9.jpg

 

 

PygostyleA.thumb.jpg.e432f481eae28b3d2405ea858a1769ee.jpg

 

 

Radius.thumb.jpg.6298f31ee15b1ad8ecfacd6eb3aebab5.jpg

 

TarsoA.thumb.jpg.df57c893c55b4aaa090a168dfe9cb0f7.jpg

 

 

BirdPtero.thumb.jpg.ef618ce7fdb6dbc659cc407263b37911.jpg

 

 

I showed this to a well respected theropod paleontologist and the potential ID's were his thoughts

Claw2.thumb.jpg.57211e73fe041b18b0d10caeaacf25ef.jpg

 

 

ClawS1.thumb.jpg.d52497b6124d5c4b0ae09ba24b583c65.jpg

 

Aviasaurus sp.

AviaClaw.thumb.jpg.fcbdcd867c236f187114937e537a6f9b.jpg

 

ID : Hxmendoza

DromieClaw.thumb.jpg.1a7cffb3d49a76d776ce9a56b0965799.jpg

 

Claw5A.thumb.jpg.c2bcf9d3da453c39e9314afa80501c55.jpg

 

 

 

 

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Amazing Frank. I bet your collection is mind blowing.

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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Stunning collection again frank .

my favourite is the bird claw and associated digit beautiful.

 

thank you

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Lovely to see a new collection thread from you. The claws are cool.

Looking forward to meeting my fellow Singaporean collectors! Do PM me if you are a Singaporean, or an overseas fossil-collector coming here for a holiday!

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Some awesome stuff!

“...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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Great specimens and photos as always.

 

13 hours ago, Troodon said:

I showed this to a well respected theropod paleontologist and the potential ID's were his thoughts

Claw2.thumb.jpg.57211e73fe041b18b0d10caeaacf25ef.jpg

Do you mean just a small Dromaeosaurid? 'Cause isn't Microraptor exclusively a Chinese genus?

Olof Moleman AKA Lord Trilobite

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On 1/5/2018 at 3:38 AM, LordTrilobite said:

Great specimens and photos as always.

 

Do you mean just a small Dromaeosaurid? 'Cause isn't Microraptor exclusively a Chinese genus?

Should have use Microraptorine which is a small Dromaeosaurid.  No intent to infer the Chinese critter.

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Which claw @Troodon? The one with the suboval articulating end that has red dorsally? It’s too wide there to be Troodontid. Troodontid foot claws tend to be laterally compressed ovals (elliptical) to somewhat teardrop shad at the articulating end. And laterally compressed overall. I used to own own just like this that was around two inches in length. It was sold to me as a juvy tyrannosaur claw. But I was always doubtful of this. The articulating end was consistent with that but the distal end just seemed too narrow to me. I eventually passed it on, never being able to pinpoint what it was. Though I did think there were similarities to the foot claws of some Mongolian Oviraptorid foot claws like the ones on Kaan and others.

 

As as for this claw below that you posted, to me it looks like a dromaeosaur right hallux claw. Its size fits a juvenile animal.

 

8132B3FB-DA6B-4124-92D2-F7AD75E6F6CA.jpeg

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1 hour ago, hxmendoza said:

Which claw @Troodon? The one with the suboval articulating end that has red dorsally? It’s too wide there to be Troodontid. Troodontid foot claws tend to be laterally compressed ovals (elliptical) to somewhat teardrop shad at the articulating end. And laterally compressed overall. I used to own own just like this that was around two inches in length. It was sold to me as a juvy tyrannosaur claw. But I was always doubtful of this. The articulating end was consistent with that but the distal end just seemed too narrow to me. I eventually passed it on, never being able to pinpoint what it was. Though I did think there were similarities to the foot claws of some Mongolian Oviraptorid foot claws like the ones on Kaan and others.

 

As as for this claw below that you posted, to me it looks like a dromaeosaur right hallux claw. Its size fits a juvenile animal.

 

 

I had the same concern it was to oval but never held a Troodontid Hallux, thanks confirming, so still a mystery.  Interesting non descript claw, and like you I do not see it as a tyranno.    I need to show it to Pete and see what he says.  

Thanks on the last one, a dromie hallux, wow did not expect that, cool thanks.  Wonder if it's Acheroraptor given the size but no comparative around.

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1 hour ago, Troodon said:

I had the same concern it was to oval but never held a Troodontid Hallux, thanks confirming, so still a mystery.  Interesting non descript claw, and like you I do not see it as a tyranno.    I need to show it to Pete and see what he says.  

Thanks on the last one, a dromie hallux, wow did not expect that, cool thanks.  Wonder if it's Acheroraptor given the size but no comparative around.

 

Actually @Troodon, the Troodontid claw you got from Mike Triebold pictured below is a Troodontid hallux. I identified it for him. I can’t remember if it was from HC or JRF, but it matched up very well with the illustrated hallux of Stenonychosaurus.

 

BBB07B72-7400-4399-83C5-6F6D3F35791A.jpeg

F90BA419-2F1B-4C1E-AC48-4DB7EA07C94D.jpeg

7BAA0338-D75D-4D93-8430-DE63F8F8D643.jpeg

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Also, @Troodon, could you post good closeup pics, laterals, dorsal, ventral, and direct articulating surface of the claw circled and arrived in red? I’m suspecting it may be a Microraptorine sickle (I’ve work on a three or four), but I would need to see better photos. How bladed is it?

 

FBC9BB41-3163-41BA-9AE5-ADAFADB92FC1.jpeg

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3 minutes ago, Troodon said:

Super, thanks it was JRF

 

Cool, than most likely cf. Stenonychosaurus.

It’s also comparable to the hallux of Talos sampsoni.

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2 minutes ago, hxmendoza said:

Also, @Troodon, could you post good closeup pics, laterals, dorsal, ventral, and direct articulating surface of the claw circled and arrived in red? I’m suspecting it may be a Microraptorine sickle (I’ve work on a three or four), but I would need to see better photos. How bladed is it?

 

 

Will do, later today, thanks  pretty compressed claw.

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24 minutes ago, Troodon said:

Will do, later today, thanks  pretty compressed claw.

 

Sorry about the typos. Fat thumbs on phone keys.

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20 minutes ago, Troodon said:

@hxmendoza  sent you a bunch of pictures on your PM did not want to clutter this up.  Be free to post your findings.  thanks

 

Looks like a Microraptorine sickle claw to me. 

Nice!

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