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Return Of The Baby Xiphactinus


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Posted

In July of 2012 I was fortunate enough to find the dentary of a baby Xiphactinus fish. A few months later I was able to recover the second jaw and preoperculum of the same fish. I believed that this would be a once in a lifetime discovery. I was wrong.

2012 LINK: http://www.thefossilforum.com/index.php?/topic/34665-winner-of-the-2012-vertebrate-fossil-of-the-year/

In June of this year I saw a jaw from another baby Xiphactinus several miles from the original. The new baby is almost the exact same scale as the first but is actually the maxilla and pre maxilla, two bones not recovered with the first. Here are some picture of this mind-blowing fossil.

As found:

post-6661-0-91428800-1434691916_thumb.jpg

  • I found this Informative 2
Posted

After prep:

post-6661-0-11021000-1434692030_thumb.jpg

post-6661-0-19724900-1434692038_thumb.jpg

  • I found this Informative 2
Posted

In comparison to 2012 specimen:

post-6661-0-50875300-1434692089_thumb.jpg

-KansasFossilHunter

  • I found this Informative 2
Posted

Well done, Kris. Congrats.

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

Posted

Amazing! But can you be absolutely certain that they all belong to the same individual?

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

Posted

Great new find! Thanks for sharing.

-Lyall

Posted

Wow, Kris! You have either the best luck,or the best instincts I have ever seen.

Fantastic find.

Regards,

    Tim    -  VETERAN SHALE SPLITTER

 

   VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png    VFOTM  --- APRIL - 2015    Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg  MOTM.png.61350469b02f439fd4d5d77c2c69da85.png  PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png    Screenshot_202410.jpg     IPFOTM -- MAY - 2024   IPFOTM5.png.fb4f2a268e315c58c5980ed865b39e1f.png

_________________________________________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

Posted

Amazing! But can you be absolutely certain that they all belong to the same individual?

All of the bones from the 2012 specimen belong to the same individual as they were found on the same horizon less than 10cm apart. The more recent one is certainly a different individual.

Posted

Wow, Kris! You have either the best luck,or the best instincts I have ever seen.

Fantastic find.

Regards,

Thanks Tim!

Posted

Wow, I'd lose my mind if I made a find like that! (OK, so losing my mind is kind of a given for me... details... ) :D

Posted

Hey Kris, those all are mighty neat. That large tail specimen over in your blog aint too shabby either!! nice! congrats. Regards, Chris

Posted

Hey Kris, those all are mighty neat. That large tail specimen over in your blog aint too shabby either!! nice! congrats. Regards, Chris

Hey, thanks! If any of y'all want to follow me on twitter its all fossils all the time. I always post something neat on #FossilFriday.

Posted

Man you're one skilled fossil hunter

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!

Posted

Congrats on another big (tiny) find!

Posted

That jaw is spectacular, great find

  • 3 years later...
Posted

But wait, there's more! How about the return-return of the baby Xiphactinus? Here's a new little Xiphactinus fossil I found last summer while I was collecting fossils for the University of Michigan Museum of Paleontology. It's a little bigger than the first two I found and is more similar in size to the one Mike Everhart has in Oceans of Kansas.  This one has both the left maxilla and dentary, as well as the preopercular and other opercular elements. Also seems to have parts of the frontal, premaxillae and seems overall to be a surprisingly complete skull! The fossil is currently under preparation at the new museum in Ann Arbor and was donated along with 30 other newly collected chalk fossils. This specimen will be another important one for research on the ontogenetic changes that occur throughout the lifecycle of this monstrous fish. Now that we have more and more specimens to look at! 

 

 

 

 

IMG_5219.jpg

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Posted

Here's an up close view shortly after collecting the fossil

IMG_5231.jpg

  • I found this Informative 2
Posted

Here's the more recent view after I had a chance to work on the fossil for a bit. Slow and careful work under a microscope!

IMG_6682 2.jpg

  • I found this Informative 3
Posted

You are doing a great job Kris

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!

Posted

Very cool :dinothumb:

  • 3 weeks later...
Posted

Wonderful specimens Kris! Looking forward to the seeing the result of the prepping :)

-Christian

Opalised fossils are the best: a wonderful mix between paleontology and mineralogy!

 

Q. Where do dinosaurs study?

A. At Khaan Academy!...

 

My ResearchGate profile

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