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Oligocene: River Bend Formation. What Is This?


sixgill pete

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This item came from some sediment from the recent offshore dredging at Topsail Island, North Carolina. The sediment is early Oligocene River Bend Formation. Being that it is pumped onto the beach and does mix with recent items, this could be recent, but I don't think it is.

It is 2.78 mm X 2.40 mm. And I am clueless as to it's identity. Any and all thoughts and ideas are greatly appreciated.

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Found in this sediment; along with other things including Echinocymus wilsoni ( an Oligocene micro echinoid) was this tooth, Scoliodon terrnova, showing it is Oligocene, River Bend material.

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post-4130-0-94815500-1436662133_thumb.jpg

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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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You've been playing in the sand, again. :D Really nice finds, Don.

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

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You've been playing in the sand, again. :D Really nice finds, Don.

As long as they don't kick me out of the sandbox, John. I am good to go!!!!!!!!!

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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The first item looks like a Ophiuroid vertebral ossicle.

Julianna, that makes perfect sense. There has been an un-described brittle star found in some of the rocks brought up by this dredging.

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 agree with Julianna. There is a lot of interesting stuff in that sand. Along with the Oligocene fossils, I've found a nice rodent incisor that is probably Pleistocene or Pliocene. Have you found any brachiopods? I saw a mention of brachs in the recent article in the club paper. I haven't found any.

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Nice finds Don! The sand from there does have splendid surprises. I am still looking through mine.

Process of identification "mistakes create wisdom".

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I agree with Julianna. There is a lot of interesting stuff in that sand. Along with the Oligocene fossils, I've found a nice rodent incisor that is probably Pleistocene or Pliocene. Have you found any brachiopods? I saw a mention of brachs in the recent article in the club paper. I haven't found any.

It sure is full of interesting items Eric. I saw the mention of brachs in the club paper also, but I have not found any yet either. I have several micro echinoids that look like little balls. They are as long as wide as thick. Look like Echinocymus in every other way though.

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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