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Cookie Cutter Matrix Mystery


Ancient Bones

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This was a specimen that was found in TFF member jcbshark's Cookie Cutter matrix. Old bones photographed it for me so that we could get an ID for it. It looks like crab in some aspects, and tooth in others...? Any ideas?

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' Keep calm and carry on fossiling '

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Wow Anceint bones, that is pretty odd. It's a tooth of some sort. With what seems to be a hollow root I would think its a fish tooth but the enamel looks more like shark. I hope one of the resident experts chime in, I'm sure one of the micro hunters will be able to help you : )

Every once in a great while it's not just a big rock down there!

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Looks more tooth like to me, similar to some of the stuff you find at big brook. Cool find!

Thanks snakebite, I hope it is a tooth.

' Keep calm and carry on fossiling '

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Wow Anceint bones, that is pretty odd. It's a tooth of some sort. With what seems to be a hollow root I would think its a fish tooth but the enamel looks more like shark. I hope one of the resident experts chime in, I'm sure one of the micro hunters will be able to help you : )

Thanks Jeff. Your matrix is full of surprises! I can't wait to find out what it is. :fingers crossed:

' Keep calm and carry on fossiling '

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We have a lot of toothy fish here past and present, it's compressed like a cuda tooth but certainly not one of those. Most fish here now have conical teeth. I really hope you get some help on this one. Did you try sending and pics to Marco Sr, Sixgill Pete or John Hamilton? Those folks all have a deep understanding of lot of the micro material from this era as well as .Good luck!

Every once in a great while it's not just a big rock down there!

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Thanks Al Dente, I do hope someone can ID it. Julianna and I are quite stumped at the moment.

' Keep calm and carry on fossiling '

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was trying to make it a broken off cusp of a compound tooth but the base is wrong. Is it really 7 or 8mm? That's pretty big.

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I agree with Eric, that it does seam to be some type of fish tooth. That I am pretty confident about. Also, like Plax said, it is on the large size. The root reminds me of some type of Porgy tooth, but don't take that to the bank. wish i could be more helpful.

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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was trying to make it a broken off cusp of a compound tooth but the base is wrong. Is it really 7 or 8mm? That's pretty big.

Yes, it is 7 mm. Thanks for looking at this Plax.

I agree with Eric, that it does seam to be some type of fish tooth. That I am pretty confident about. Also, like Plax said, it is on the large size. The root reminds me of some type of Porgy tooth, but don't take that to the bank. wish i could be more helpful.

Thank you for checking this out Don. I will keep my eyes open for anything else that comes close. Maybe someday we will know for sure, and for now, we will call it 'a fish tooth'.

Julianna

 
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Reminds me of a saw shark rostral spine. The root looks right but the crown doesn't. The crown on rostral spines is usually more elongate and symmetrical.

Do you know how old this material is?

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Reminds me of a saw shark rostral spine. The root looks right but the crown doesn't. The crown on rostral spines is usually more elongate and symmetrical.

Do you know how old this material is?

Miocene to recent , I do find sawfish teeth in this creek but they look a lot different. I wonder if it's a pathological tooth of some sort and that's why it's hard to pin down?

Every once in a great while it's not just a big rock down there!

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Reminds me of a saw shark rostral spine. The root looks right but the crown doesn't. The crown on rostral spines is usually more elongate and symmetrical.

Do you know how old this material is?

Thanks for looking at this Doctor Mud.

Miocene to recent , I do find sawfish teeth in this creek but they look a lot different. I wonder if it's a pathological tooth of some sort and that's why it's hard to pin down?

Jeff, I doubt that this is a pathologic tooth as John Hamilton tells me he found one just like it in your matrix as well.

The mystery continues....

 
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Miocene to recent , I do find sawfish teeth in this creek but they look a lot different. I wonder if it's a pathological tooth of some sort and that's why it's hard to pin down?

Jeff,

I don't believe it is pathological because I have one just like it from matrix you sent me last year. I assumed it was a fish tooth when I found mine (5mm long).

post-6248-0-44589300-1415108028.jpg

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The light colored tip is a feature I associate with bony fish teeth.

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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Thanks for looking at this Doctor Mud.

Jeff, I doubt that this is a pathologic tooth as John Hamilton tells me he found one just like it in your matrix as well.

The mystery continues....

Jeff,

I don't believe it is pathological because I have one just like it from matrix you sent me last year. I assumed it was a fish tooth when I found mine (5mm long).

attachicon.gifmsg-6248-0-08233800-1415053333_thumb.jpg

thank you both : )

Every once in a great while it's not just a big rock down there!

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Jeff,

I don't believe it is pathological because I have one just like it from matrix you sent me last year. I assumed it was a fish tooth when I found mine (5mm long).

attachicon.gifmsg-6248-0-08233800-1415053333_thumb.jpg

John, can you put up a side view of your tooth.

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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Here is another view of Ancient Bones' tooth showing both sides. The blade is thin compared to other fish teeth that we have looked at which seem to be mostly conical. The outer edge is actually translucent (like the edge on a cookie cutter tooth.)

post-13648-0-08102100-1415142329_thumb.jpg

 
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John, can you put up a side view of your tooth.

Don,

That is a side view. Did you mean a mesial or distal view? If so it my take some time since I took the original photo in December of 2013 and will need to find the tooth and take pictures.

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Don,

It didn't take me as long as I thought to find the tooth. Here is the original photo and three additional views,

post-6248-0-64938400-1415145755_thumb.jpgpost-6248-0-66034700-1415145752_thumb.jpgpost-6248-0-45039000-1415145760_thumb.jpgpost-6248-0-37164000-1415145757_thumb.jpg

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Julianna and John. With all of your new pictures, I am wondering if it may be some type of Trichiuridae (cutlassfish).

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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Julianna and John. With all of your new pictures, I am wondering if it may be some type of Trichiuridae (cutlassfish).

Don, that just might be it! Figure 2 on elasmo.com's Trichiuridae page looks as close as anything else I've looked at. Especially the blade. Now, if there were just more photos of cutlassfish to compare to... I will keep looking.

John, thanks for posting the additional photos. You and Ancient Bones have found something really neat.

 
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