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Lawrenceburg, Indiana Trip- 1-26-18


Nimravis

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Thursday night I check the weather report for Lawrenceburg, Indiana and saw that on Friday it was going to be in the 50's. So I did what any other Fossil Collector would do, I called the Hilton Doubletree and made a reservation for Friday night (on a side note, this is a great hotel to stay at, and it is right on the Ohio river). I let work know that I was going to be off and put together my collecting gear. 4:30 am (Friday), I was on the road to Southern Indiana for a little Ordovician collecting. 5 hours and about 350 miles later, I was collecting in Lawrenceburg. The standard stuff was found, bryozoan, brachiopods, trilo-bits, multiple straight cephalopods and some cool Isotelus trilobite pieces (Genal spines, Hypostome, thorax segments and really big piece - if some one can ID that piece, it would be appreciated; I'm thinking that it is a thorax segment.

 

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Pieces of Trilobites:

 

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Isotelus Trilobite-  Genal Spines / Hypostome

 

 

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Isotelus Trilobite- Thorax Segments

 

 

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Isotelus Trilobite-  What Part ???????

 

 

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Straight Cephalopods-

 

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Brachiopods-

 

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Bryozoan-

 

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UNKOWN-

 

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Looks like you had a good day. Also appears to be a great place to hunt. Nice finds!

Dipleurawhisperer5.jpg

I like Trilo-butts and I cannot lie.

 

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5 minutes ago, Darktooth said:

Looks like you had a good day. Also appears to be a great place to hunt. Nice finds!

It is- also the St. Leon roadcut. 

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4 minutes ago, Plantguy said:

Yep, nice finds. Nice brachs and unknown...I miss hunting in Indiana...thanks for the pics.

 

Regards, Chris 

Thanks Chris, even though the trip is 11 hours / 700 miles round trip in 2 days, it is a lot of fun.

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The unknown reminds me of Girtyocoelia (sponge), but that's the wrong period. So, no idea... Interesting.

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Nice plates! :)

I particularly like the brachiopods. 

That last unknown, I can't see properly but is it spiral?

If not could it be something like Tentaculites? 

 

Life's Good!

Tortoise Friend.

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1 hour ago, Tidgy's Dad said:

Nice plates! :)

I particularly like the brachiopods. 

That last unknown, I can't see properly but is it spiral?

If not could it be something like Tentaculites? 

 

It does not appear to be a spiral, it more like the round beads speared at equal intervals. I does not look like other pics of Tentaculites.

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Is there anything to the left of it? 

 

My first thought would be something like the nodular siphuncle of a Sactoceras sp. 

 

For comparison, image from Hessin: 

sacto.jpeg

 

And the Isotelus part is likely a cheek with some base of the genal spine. Also, in your first batch of trilobite pieces pics, the pygidium showing there is likely a Flexicalymene sp. 

...How to Philosophize with a Hammer

 

 

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@Kane I think you nailed it - that is exactly how “my little string of pearls” look.

 

 Thanks for id on the Isotelus part- I was happy to find such a large fragment.

 

i figured that was a Flexi.

 

 Thanks again.

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We have a comparable formation up here, so a lot of these are like old friends. :D 

 

And, I would wager to guess that your brachiopods are Strophomena sp. I can't drill that one down any further as I'm not that savvy with these kinds of brachs. :P 

...How to Philosophize with a Hammer

 

 

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Nice finds yet again, Ralph!!!  I love that lonely siphuncle, as well as the pink-ish brachiopod - thanks for sharing!!!

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What formations are exposed there?  I stopped by a couple of years ago and found tons of bryozoans and brachiopods in the lower part, below and above the first bench.  I didn't find much in the way of trilobites, just one Flexicalymene thorax+pygidium.  My impression at the time was that the outcrop was perhaps a bit too fresh, and would get better with time and erosion.

 

Don

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17 hours ago, Monica said:

Nice finds yet again, Ralph!!!  I love that lonely siphuncle, as well as the pink-ish brachiopod - thanks for sharing!!!

That was my favorite brachiopod- I love the color.

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Very nice finds. Looks like a cool place to hunt.

I went hunting Saturday in the NSR, but still need to clean some of mine up a bit before I post them.

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8 hours ago, FossilDAWG said:

What formations are exposed there?  I stopped by a couple of years ago and found tons of bryozoans and brachiopods in the lower part, below and above the first bench.  I didn't find much in the way of trilobites, just one Flexicalymene thorax+pygidium.  My impression at the time was that the outcrop was perhaps a bit too fresh, and would get better with time and erosion.

 

Don

Checking the "Fossils and Stratigraphy of the Upper Ordovician Standard in South Eastern Indiana", it shows the Bellevue, Fairmount, Mt. Hope, McMicken and Southgate. I agree, it is fresh, but it seems to get better as the time goes.

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I agree. It's still early in the winter. More come out as the snow melts and re-freezes day after day and the rain erodes the hillside.....the typical cycle.

And, for all you know someone was there a few days earlier when the temps were in the 40's.

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Here is a link to the paper "Fossils and Stratigraphy of the Upper Ordovician Standard in South Eastern Indiana" that Nimravis mentioned.  It seems to be an excellent resource for anyone who collects in the area.

 

Don

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On 1/31/2018 at 11:15 AM, FossilDAWG said:

Here is a link to the paper "Fossils and Stratigraphy of the Upper Ordovician Standard in South Eastern Indiana" that Nimravis mentioned.  It seems to be an excellent resource for anyone who collects in the area.

 

Don

Thanks Don, I never know to link papers. Much appreciated.

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Thank you for calling my attention to that paper.  It's really useful!  Also some of the comments in the ID section are pretty funny, such as the one about sea stars (starfish): "It is best not to let anyone know that you found one until months later.  Could lead to violence."

 

Don

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Very nice Ralph. Those brachs are fantastic.

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

 

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  • 8 months later...
On 1/31/2018 at 5:15 PM, FossilDAWG said:

Here is a link to the paper "Fossils and Stratigraphy of the Upper Ordovician Standard in South Eastern Indiana" that Nimravis mentioned.  It seems to be an excellent resource for anyone who collects in the area.

 

Don

Great paper. 

Thanks. :)

Life's Good!

Tortoise Friend.

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