Lee Creek Matrix Under A Microscope

[Searcher78]

3 hours ago, hokietech96 said:

Don’t know if this helps, but here are pics of my “hound”, “dog fish”, “cat shark”, and “nurse”.

[hokietech96]

I am still going through the matrix and find things everyday....

 

I have found about 30 verts so far

tiny perfect shell

I believe this is fish teeth?

[hokietech96]

Thought I would add some more pics of finds that I have had going through more Lee Creek matrix.  Nothing really out of the ordinary. There are a couple crazy looking shark teeth that I think cannot be ID.  Enjoy the pics!

 

1.  Found my largest and chunky Pinfish (Lagodon Rhomboides) teeth so far

 

2.  I have found a ton of ray teeth that are mostly Raja and Dasyais.  I have not found to many Mobula but this was in todays finds.

 

3. Cool looking fish tooth

 

Some cool Shark Teeth.  Not really sure if they can be IDed.  Any thoughts @Al Dente

[Al Dente]

This one might be Sphyrna or even Rhizoprionodon. I think the other two shark teeth are symphyseal teeth.

 

 

[hokietech96]

@Al Dente Thanks for taking a look!  I really appreciate it.

[Coco]

Please, would you show us more of your scale, because on your pics we can't know if it is in cm or in inches. Thanks.

 

Coco

[hokietech96]

5 minutes ago, Coco said:

Please, would you show us more of your scale, because on your pics we can't know if it is in cm or in inches. Thanks.

 

Coco

Will do my best.  It is hard to get everything in one picture under the microscope.  It is MM

[Coco]

If that isn't possible, it would be nice to provide the precision in the text

 

Coco

[I_gotta_rock]

I know from taking micro photos of the same stuff that it is almost impossible to get w good close-up of this stuff and a ruler, too. I have been adding a scale bar to my pictures in a photo editor. It's just a simple line. It isn't exactly precise, but it is close enough to give people the right sense of scale. You can do it in any half-decent photo editor and even a simple paint program will do. 

[hemipristis]

On 6/23/2020 at 2:57 AM, hokietech96 said:

I believe a Thrasher Shark

Affirmative.  Alopias sp., Thresher shark

[hemipristis]

On 6/23/2020 at 2:51 AM, hokietech96 said:

Hi.  For Father's Day my kids got me an electic microscope.  I have been picking through Lee Creek matrix that I purchased to get me through quarantine.  I am really not familiar with smaller teeth so it would be greatly appreciated if anyone can confirm my ID.  Enjoy the pics.  For all the Dad's, I hope you had a great Father's day! 

 

This tooth is 2-3mm.  I thought it was small tooth sand tiger but the root seems rather large.  I have been all through Elasmo.com and I cannot find a match.

 

Possibly Scyliorhinus sp.

[hokietech96]

I found this nice little cat shark tooth (Scyliorhinus) this morning.

@I_gotta_rockThanks for the scale idea.  It is much cleaner looking and easier.

 

[hemipristis]

On 6/23/2020 at 5:05 AM, hokietech96 said:

Could this be a bramble shark?

 

mouth plate to a fish

The tooth appears to be Rhizoprionodon sp., and the fish plate is indeed a pharyngeal plate, though I'm not sure to what species

[hemipristis]

5 hours ago, Al Dente said:

This one might be Sphyrna or even Rhizoprionodon. I think the other two shark teeth are symphyseal teeth.

 

 

Concur.  I have spent too many hours trying to speciate this tooth shape I finally gave up and keep them in a box called: Sphyrna or Rhisoprionodon. LOL

[hokietech96]

@hemipristisThanks so much for taking a look at the teeth!  Much appreciated!  I agree with you that most of the small teeth tend to look similar between multiple types of shark and then throw in all the symphseal teeth I have been finding.  Makes things challenging!

[hemipristis]

14 hours ago, hokietech96 said:

@hemipristisThanks so much for taking a look at the teeth!  Much appreciated!  I agree with you that most of the small teeth tend to look similar between multiple types of shark and then throw in all the symphseal teeth I have been finding.  Makes things challenging!

yup!

 

I have a box of maybe 1000 Carcharhinid, Sphyrnid/Rhizoprionodon teeth that I keep meaning to sit down with on a rainy night....  lol

[Searcher78]

21 hours ago, Al Dente said:

This one might be Sphyrna or even Rhizoprionodon. I think the other two shark teeth are symphyseal teeth.

 

 

This is what I thought. I must be getting better at IDing teeth. I’m leaning heavily on Sphyrna due to the root and blade.

[Searcher78]

On 8/18/2020 at 3:25 PM, hokietech96 said:

Thought I would add some more pics of finds that I have had going through more Lee Creek matrix.  Nothing really out of the ordinary. There are a couple crazy looking shark teeth that I think cannot be ID.  Enjoy the pics!

 

1.  Found my largest and chunky Pinfish (Lagodon Rhomboides) teeth so far

 

2.  I have found a ton of ray teeth that are mostly Raja and Dasyais.  I have not found to many Mobula but this was in todays finds.

 

3. Cool looking fish tooth

 

Some cool Shark Teeth.  Not really sure if they can be IDed.  Any thoughts @Al Dente

The 4th and 5th tooth have a cat shark look to them.

[hokietech96]

I thought i would continue with this thread and post some finds that I have had over the past week.  This truely has been the never ending pile of matrix.  I am just about half way through it and I am amazed how many things I have found.  Well over 500 items.  Please correct me if I am incorrect on any of my IDs.   all the teeth are 2-3 MM

 

1. Carcharoides Catticus

 

2.  Tope Shark - Galeorhinus

3-7 I believe are all Catsharks-Scyliorhinus

 

 

I originally thought this tooth was Carcharoides Catticus but it looks like serrations on the blade and I dont think it should to be that.  So I am not sure about this one.  @Al Dente@sixgill pete@MarcoSr any thoughts?  Thanks!

 

 

[Notidanodon]

Nice finds very diverse matrix

[MarcoSr]

19 hours ago, hokietech96 said:

I originally thought this tooth was Carcharoides Catticus but it looks like serrations on the blade and I dont think it should to be that.  So I am not sure about this one.  @Al Dente@sixgill pete@MarcoSr any thoughts?  Thanks!

 

 

 

The cusplets don't seem elongated enough to me to be Carcharoides Catticus.  However check out the below link which states that:  " C. totuserratus are fully serrated. C. catticus can have serrations too, but less developed as C. totuserratus. "

 

 

https://www.fossilhunter.nl/index.php/en/carcharoides

 

 

EDIT: From Richard Chandler, editor  2015 Fossil Fish North Carolina Fossil Club 

 

 

Marco Sr.

Edited September 11, 2020 by MarcoSr
Added NC Fossil Club discussion

[hokietech96]

@MarcoSr  Thank you so much for the feedback.

[MarcoSr]

5 minutes ago, hokietech96 said:

@MarcoSr  Thank you so much for the feedback.

 

Check out my edited post above.

 

Marco Sr.

[hokietech96]

48 minutes ago, MarcoSr said:

 

Check out my edited post above.

 

Marco Sr.

Thanks.  I beginning to think that it is not a Carcharoides. But I do not know any other teeth from the Pungo River Formation that have cusplets besides Cat and Sandtiger sharks.  

[Al Dente]

20 hours ago, hokietech96 said:

I originally thought this tooth was Carcharoides Catticus but it looks like serrations on the blade and I dont think it should to be that.  So I am not sure about this one.  @Al Dente@sixgill pete@MarcoSr any thoughts?  Thanks!

I think this could be Carcharhinus macloti with the sides worn off. Here's one that I borrowed from one of Sixgill Pete's posts.