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Few Things From A Trip To The Nc Oligocene Today


sixgill pete

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Took a trip to an Eastern NC Oligocene Quarry today, River Bend/Belgrade Formation. Found a nice variety of stuff. Lots of Hemi's, Tigers, a few Mako's and Carcharhinus teeth. 3 croc teeth, lots of ray teeth and other stuff. here are some of the nicer things.

Turtle? (posted in the ID section) ... post-4130-0-76736100-1408157415_thumb.jpg

a nice, but unfortunately broken 2 1/2" C. angustidens .... post-4130-0-84399500-1408157508_thumb.jpg post-4130-0-52169800-1408157490_thumb.jpg

A nice small 1 7/16" posterior C. angustidens ..... post-4130-0-88890000-1408157462_thumb.jpg

a decent fish vert , 1 1/4 wide 3/4" thick ..... post-4130-0-08889900-1408157452_thumb.jpg post-4130-0-73078600-1408157440_thumb.jpg

More pics later .........

  • I found this Informative 1

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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Nice assortment of finds, Don.

Thanks for posting your trip.

Regards,

    Tim    -  VETERAN SHALE SPLITTER

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Yes Don, i believe that is from a soft shell turtle.

Sweet finds!

~Charlie~

"There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK
->Get your Mosasaur print
->How to spot a fake Trilobite
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Nice stuff Don, love the angys! :)

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

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Thanks everyone. Will take more pics of the other teeth this afternoon Lisa.

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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First the Ray Teeth, Rhinoptera being the most common. ....... post-4130-0-18378700-1408208075_thumb.jpg

..... post-4130-0-76318300-1408208034_thumb.jpg

Pteromylaeus like ......... post-4130-0-26165900-1408208017_thumb.jpg

Aetomylaeus like ........ post-4130-0-01300300-1408207986_thumb.jpg

Edited by sixgill pete

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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Shark including hemi's, tigers ( G. aduncus and G. casei) Physogaleus sp.sand tigers, Lemons and some Carcharhinus ......

post-4130-0-44063400-1408208357_thumb.jpg

a nicer Galeocerdo casei ...... post-4130-0-91269700-1408208491_thumb.jpg post-4130-0-79054400-1408208514_thumb.jpg

Edited by sixgill pete

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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better stuff teeth already pictured, croc, sawfish rostral teeth, barracuda teeth, and more ........ post-4130-0-26600300-1408208703_thumb.jpg

2 fish teeth, like Anomaedus but no Cretaceous here ....... post-4130-0-24389500-1408208638_thumb.jpg post-4130-0-03841700-1408208667_thumb.jpg

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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First the Ray Teeth, Rhinoptera being the most common. ....... attachicon.gifDSCN0730.JPG

Thinking Plinthicus stenodon ..... attachicon.gifDSCN0731.JPG

Pteromylaeus sp. ......... attachicon.gifDSCN0732.JPG

Aetomylaeus sp. ........ attachicon.gifDSCN0733.JPG

Don

Really nice specimens. I see features on the " Thinking Plinthicus stenodon " specimen that don't seem to match Plinthicus. The profile view of Plinthicus is pretty diagnostic. Does the tooth have a " 45-degree angle of recline seen in lateral profile" ? As for the other ids I still have a lot of problems telling the medial teeth of "MYLIOBATIDAE — Eagle rays" apart especially from pictures, even though I have a very large number of them. Complete plates are no problem to id but you seldom find them.

Marco Sr.

"Any day that you can fossil hunt is a great day."

My family fossil website     Some Of My Shark, Ray, Fish And Other Micros     My Extant Shark Jaw Collection

image.png.9a941d70fb26446297dbc9dae7bae7ed.png image.png.41c8380882dac648c6131b5bc1377249.png

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Nice Don!!!! The 2 pictures of teeth on plates look to be the same picture... Just so you know! :)

Edited by lissa318
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Hey Don, Nice collection of critters...very similar to what we find down here but a bit older! Regards, Chris

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Don

Really nice specimens. I see features on the " Thinking Plinthicus stenodon " specimen that don't seem to match Plinthicus. The profile view of Plinthicus is pretty diagnostic. Does the tooth have a " 45-degree angle of recline seen in lateral profile" ? As for the other ids I still have a lot of problems telling the medial teeth of "MYLIOBATIDAE — Eagle rays" apart especially from pictures, even though I have a very large number of them. Complete plates are no problem to id but you seldom find them.

Marco Sr.

Marco, I guess I should have labeled the last two as Pteromylaeus and Aetomylaeus like instead of using sp. The literature I used to ID them from this particular quarry uses that terminology. As far as the first tooth, that was an educated guess on my part, I do not think the tooth is Rhinoptera nor any Myliobatid. I will have it get it out again and take some pics from different views.

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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Thanks Zach, you and Brian have been finding some nice mako's here lately. Chris, it is always nice to find a wide assortment of goodies.

lisa, I saw what you meant, goofed on that one.

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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Marco, I guess I should have labeled the last two as Pteromylaeus and Aetomylaeus like instead of using sp. The literature I used to ID them from this particular quarry uses that terminology. As far as the first tooth, that was an educated guess on my part, I do not think the tooth is Rhinoptera nor any Myliobatid. I will have it get it out again and take some pics from different views.

Don

Are there also Aetobatus from this quarry? The upper Aetobatus teeth can look similar to Aetomylaeus. Can you point me to your id reference? Other than elasmo.com I haven't found much to identify the eagle ray teeth. Cappetta shows mostly complete plates versus individual teeth. I have very good written descriptions but good pictures of specimens work much better for me than words.

Marco Sr.

"Any day that you can fossil hunt is a great day."

My family fossil website     Some Of My Shark, Ray, Fish And Other Micros     My Extant Shark Jaw Collection

image.png.9a941d70fb26446297dbc9dae7bae7ed.png image.png.41c8380882dac648c6131b5bc1377249.png

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Marco, I have edited the post to reflect my current opinions on the ray teeth. I agree after researching that the first tooth is not Plinthicus, but am not sure of the ID. I still do not see Rhinoptera with it. The reference I was using was a copy given to me a few years ago, and it turns out it is the same as the ray page from the Belgrade Fauna page on Elasmo. I honestly cannot remember who it was that gave it to me. I probably will bag these teeth and label them Myliobatidae undet.

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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Marco, I have edited the post to reflect my current opinions on the ray teeth. I agree after researching that the first tooth is not Plinthicus, but am not sure of the ID. I still do not see Rhinoptera with it. The reference I was using was a copy given to me a few years ago, and it turns out it is the same as the ray page from the Belgrade Fauna page on Elasmo. I honestly cannot remember who it was that gave it to me. I probably will bag these teeth and label them Myliobatidae undet.

Don

Thank you for the elasmo reference. I hadn't seen that Bill Heim page before. However, it is difficult to get a lot of id help from the pictures shown. For years I never really looked closely at these medial teeth. I'm looking now through some Eocene matrix from VA that has a large number of them (I'm seeing several hundred from each trip's worth of matrix that I took and I made over 100 trips). As I look at them closely now I realize that I need to find some really good id references as I am having a lot of trouble identifying them to even a genus. I'm also finding a lot of the small lateral teeth and having the same id problems even though they are very distinctive. What I'm going to try to do is put together very similar medial and lateral teeth to see if that helps with an id because I can id complete plates.

Marco Sr.

"Any day that you can fossil hunt is a great day."

My family fossil website     Some Of My Shark, Ray, Fish And Other Micros     My Extant Shark Jaw Collection

image.png.9a941d70fb26446297dbc9dae7bae7ed.png image.png.41c8380882dac648c6131b5bc1377249.png

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Marco, it does seem like there would be a good reference somewhere for these teeth. I have several hundred (mostly worn/broken) from this quarry, but the newest collecting area has offered up many complete and excellent shape specimens. Maybe someone needs to study these and do a paper on them. I really think there are more than 3 genera of rays here, and possibly a few species of each genera. But as you stated, plates are much more diagnostic and over the years I have only seen two come out of this quarry. Neither were found by myself.

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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Don,

I can't think of what else those could be but Anomoeodus teeth. I considered the possibility that they were very worn Heterodontus teeth but they don't wear out on the inside like that. The root often just wears down to the level of the crown foot. That larger tooth seems too big for Heterodontus anyway. It might be an odd rework and transport from another site in the region or perhaps a contaminant (specimens from another area that fell out of somebody's pocket).

Jess

2 fish teeth, like Anomaedus but no Cretaceous here ....... attachicon.gifDSCN0738.JPG attachicon.gifDSCN0737.JPG

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Jess, these are actually the 3rd and 4th I have found in the last 2 years or so. I have considered the possibility of these being transported. It would seam odd to find 4 of the same as a contaminant in completely different parts of the quarry.

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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I think the fish teeth look very much like Anomoeodus teeth and could be reworked, but I have similar teeth from Lee Creek (Miocene or Pliocene). Some modern parrotfish have very similar pharyngeal teeth.

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