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Squalicorax's Paleozoic Spring Break


squalicorax

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Well spring break is apon me now and I have been planning a big spring break trip for this year since the first snow fall. I have always seen the nice stuff people have gotten from the St Clair fern site so I made a trip revolving around that site. The trip was lead by me and it included 8 more members of the UWM Paleo Club that I helped founded back 2 years ago. Now we are more popular than geology club woot! Anyways I through together a trip that would cover the Ordovician of Kentucky, the st clair site and the Devonian of NY.

Our first stop was an extremely intimidating Maysvillian road cut in Northern Kentucky that has been well collected at over the years but always seems to produce quality specimens. I have not personally collected this cut previously but I was eager to spend time in the older Ordovician rocks of the Cincinnati area. I was accustom to collecting at St. Leon in the Richmondian many times.

When I got to the cut I was unsure where to begin. Immediately I found a crinoid calyx from the Crinoid Ectinocrinus. Wow look at that my first ever crinoid calyx with arms still attached. Also found a nice prone Flexicalymene granulosa

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There was alot of well preserved cephalopod material and I even pieced together some pieces that were associated. It was almost like vertebrate hunting :D This one might be Treptoceras The siphuncle is offset on this specimen.

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Also found a nice plate with a few crinoid calycies on it.

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Lastly some Rusophychus resting traces.

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Site photos to come later. I have alot of them for each site and will include them at the end when I am done showing all the specimens. Thanks for looking.

My Flickr Page of My Collection: http://www.flickr.com/photos/79424101@N00/sets

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St Clair Fossils

St Clair PA is a site I've always thought about going to. It is an old strip mine exposing the Llewellyn formation which is Pennsylvanian in age. I have never collected plant fossils so I didnt know what to expect nor do I know any common genera that are present. I was fortunate enough to have the generosity of Dave (Shamalama) to meet me at the site, explain the proper techniques, share the taxa that are present and even trade fossils with me. Without Dave I would have not had such a good time. I'd like to thank him again for his generosity in the fossils he gave me and all the delicious local PA beer he supplied.

Ok on to the fossils. The site is a quarter mile or so walk from the parking spot. There is alot of roads winding around the area so it can be easy to get lost unless you have a nice map to look at. The site is mostly just a slighly dipping hill with shale talus slopes and some bed rock exposed in areas. There is alot of digging spots that people were using to dig up the ferns. The sun was hot and there was alot of rocks to dig through. This is the kind of site where you hope that people making smart decisions on their collecting techniques and we hope to preserve the site for future use for fossil collectors.

Here is a large slab I collected early on in the day.

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Large piece of root.

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Smaller root node

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And my favorite piece

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Thanks for looking. Devonian next..

Edited by squalicorax

My Flickr Page of My Collection: http://www.flickr.com/photos/79424101@N00/sets

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Middle Devonian Of Ny

The last 2 days of the trip we spent at 18 mile creek and the Penn Dixie Fossil Park. Since there was not a foot a snow in Buffalo Ny this time of the year the fossil collecting was in full force. The 18 mile creek access site is a great collecting site for Middle Devonian Brachiopods and Trilobites. I am always greatly drawn by the amount of well preserved and large brachiopods on site.

The site is a river and a lake cut that is large and full of fossils. The stratigraphy is shales that are sequential with some limestones and more laminated shales. I found my best material from the shales surrounded the heavier compacted lime-shale massive unit.

Here is a list of the Brachiopods I found at the Penn Dixie and the 18 Mile Creek site.

Spinatypa

Psuedoatrypa

Athyris

Rhipidomella

Strophodonta

Megastrophia

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Mucrospirifer

Mediospirifer

Paraspirifer

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Spinocyrtia

unidentified spirifer sp.1 sp2 it goes on

Trilobites are the main draw of both sites and I did considerably better at the 18 mile creek site than I did at Penn Dixie. I feel like penn dixie surface collecting is pretty weak and quarrying is really the only method to use. I was gracious enough to have Xonenine to show me some tricks of the penn dixie quarry included the brachiopod beds.

Here is my amazing Phacops quadruple plate. Which while I was cleaning it I found another Phacops right next to one of them. It is probably my favorite fossil so far.

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I also found a nice prone Greenops that needs prep. I can see that genal spines on this specimen so hope the rest of the cephalon is there.

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Also I found a weird Bryozoan

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Also a really nice Aviculopectin? bivalve.

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Edited by squalicorax

My Flickr Page of My Collection: http://www.flickr.com/photos/79424101@N00/sets

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Those are pretty nice for first-time visits.

Edited by Missourian

Context is critical.

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great ectenocrinis...gotta love finding those crowns in stem logjams!

Grüße,

Daniel A. Wöhr aus Südtexas

"To the motivated go the spoils."

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Looks like you had a really good time. Nice finds at every stop, would have to work hard to beat that.

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Wow, you put together a pretty nice trip. Fantastic finds...thanks for sharing. I believe I will start packing up my car and heading north!!

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A five-day fossiling Odyssey! You make it look easy :)

"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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:) I am beyond jealous! Beautiful finds.

Process of identification "mistakes create wisdom".

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Wow what a trip!!!! :greenwnvy: Those are some great fossils...I especially love the crinoids and the trilos!

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I was watching with great anticipation early this morning and left for a collecting trip before you posted the rest of your photos. Everything is spectacular but the bell is ringing for the Phenomenal emo57.gif Phacopids. Congrats Nathan :D

image.png.a84de26dad44fb03836a743755df237c.png

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Our first stop was an extremely intimidating Maysvillian road cut in Northern Kentucky that has been well collected at over the years but always seems to produce quality specimens. I have not personally collected this cut previously but I was eager to spend time in the older Ordovician rocks of the Cincinnati area. I was accustom to collecting at St. Leon in the Richmondian many times.

is that the Edrioasteroids place ? ;) :D

Erosion... will be my epitaph!

http://www.paleonature.org/

https://fossilnews.org/

 

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Wow, you really made out well, Nathan! I'm glad that you found some good stuff at St. Clair. Those Ectenocrinus are really nice too.

-Dave

__________________________________________________

Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPhee

If I'm going to drive safely, I can't do geology. - John McPhee

Check out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/

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wow, 5 days straight of fossil hunting, I know what I want for Christmas from my wife now :) lots of great finds, especially love the crinoid calyx (I only ever seem to find the stems) and that big old cephalopod :)

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Squalicorax,

Thanks for the enjoyable read. :)

Great report, Pics, and finds!

You did really well.

Congratulation.

Regards,

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

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