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Pennsylvanian Brachiopods from Olgesby, Illinois- PART DEUX


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Though I just visited this site a few days ago and posted a trip report of that session, I decided to go back yesterday for three reasons:

#1- My lower back was back to being 100%, that's a good thing.

#2- It was supposed to snow today, and it is. I think the Olgesby area might have about 3" on the ground now and you can't collect on a steep scree field covered in snow.

And #3, I just like collecting fossils.

 

This area contains fossils from this formation-  La Salle Limestone member of the Bond Formation (Missourian, Pennsylvanian) Unit 3. I am pretty sure that a portion of the Gray Shale (Unit 2) also came down.  

 

So yesterday I headed off to the road cut to collect in the balmy winter weather of Illinois. I was alone except for the Bald Eagles that were soaring high over head, from time to time you could hear their screech.

 

IMG_6636.PNG.b2ed8c95ee4b10f5ffc1ed250e8da141.PNG

 

 

With my back being a 100% I was able to maneuver along the loose rocks without a problem and was able to spend some time looking a the rocks a found a number of beautiful plates and large loose brachiopods. This site will continue to produce as the weathering process takes affect. As I stated in my last post, if you are ever in that area, you should stop and take a look, there are some beautiful fossils there.

 

Here are some pics that I took in the field and I will end with pics of some of the same fossils, but hopefully in better light.

 

IMG_6600.jpg.44d1e9f9638c3e9457d6df76fb2194aa.jpgIMG_6614.jpg.2a78270dcca95f3c99c5009ea4e912d3.jpgIMG_6576.jpg.1e8461bdc34f984ef6e56c78e5a864e5.jpgIMG_6616.jpg.568c8c2be13795bd8146268616dddcfe.jpgIMG_6622.jpg.8c9493a13d2ec1d4195b381e98de3dc1.jpg

 

Here a chunks of rocks that are just loaded with brachiopods.

 

IMG_6620.jpg.4538c2344ab7e43addd6cff59ca2bb7c.jpgIMG_6625.jpg.70737b4efe20f50aeb42d2465cdcf8c6.jpgIMG_6626.jpg.3ee7e2420dd6886c5ccd73a7ebf1c06c.jpgIMG_6627.jpg.1202bd32fbcf1b157e23cdb0b4b0555b.jpgIMG_6628.jpg.76993dd65a2cffd52d7f18ba2f5b7359.jpg

 

 

Composita argentia-

 

IMG_6583.jpg.1dccc10cc383cae8ade78d2dcf89a0ca.jpgIMG_6585.jpg.849ad0a830cafd0c535dc364cd5f4306.jpg

IMG_6586.jpg.67d98764a88c955f59e510daa9c9e595.jpgIMG_6591.jpg.5af29746253fc656c3af30c46230cc95.jpg

IMG_6599.jpg.731ce93c47e2fe684cf8038b9fb58a08.jpgIMG_6689.jpg.8b5f06b310ec9e5b76a4e50fd8a4c3ae.jpg

 

I did find a number of fossils filled with crystals, this one is a favorite.

 

IMG_6612.jpg.dbf7e3f4b939d1ae3781c76fc4d6e156.jpg

 

Bryozoan-

 

IMG_6590.jpg.3b7458490a50fe6de01e4049afc9429d.jpg

 

CONTINUED---------Next Post

 

 

 

 

 

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Juresania nebrascensis-

 

IMG_6629.jpg.e73f04472c60248037e7911e72ff5e9a.jpgIMG_6588.jpg.b1f9e24d43c150fc49e02b1aac7897d1.jpgIMG_6587.jpg.ec18ddbbaa481ffe13b20e2e2aaebf33.jpgIMG_6602.jpg.a3560cc52b07182a87d628e16a64dfc3.jpgIMG_6603.jpg.fa8898bf15ec3087ca4031b7bdce1d20.jpgIMG_6605.jpg.d22b27b2974b886fb42e860dd066dfe2.jpgIMG_6609.jpg.d97e13ae2050142022b50b3076e80204.jpgIMG_6632.jpg.58eb8307c68ae8807cde0992fa569c53.jpgIMG_6634.jpg.fe0e640d94f2b54b3660214e11379db2.jpg

 

Neospirifer dunbari-

 

IMG_6594.jpg.a071de1380ccd12f51a41756040b234a.jpgIMG_6598.jpg.52ee2f98986094f6e40cfe5ad07ef598.jpgIMG_6623.jpg.28f581ae2b02bd4c8dd1d44b90750d70.jpgIMG_6624.jpg.24910058cb5f15b6ef5e8649f1f71c67.jpgIMG_6633.jpg.b2bc759190939a105e30b2597091f7f8.jpg

 

Linoproductus cora-

 

IMG_6581.jpg.83af5749409e868a4def43c057892f9f.jpgIMG_6584.jpg.af051368baedfaf1ce6c5cc23a2cada1.jpgIMG_6596.jpg.19995ecd570f6515825cc3c2564b6cca.jpg

 

CONTINUED-----Next Post

 

 

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Pics shot at home-

 

Crystal inclusions-

 

IMG_6698.jpg.9fa6a0e1841abfe814ba771f597ea4cd.jpgIMG_6699.jpg.bedae9e4aafe4cdd7af31be1c61dda8a.jpg

 

Top and Bottom-

 

IMG_6700.jpg.24eb3f18af54ad38f988e488ed70614c.jpgIMG_6701.jpg.00ad734ce967e1137f642876e632f618.jpg

 

IMG_6704.jpg.2f6ab3ea6a26298c166a2efe96598df4.jpg

 

IMG_6707.jpg.26429462fb8d9e6f094b8a54aba306e2.jpgIMG_6708.jpg.03d6fe2f950c879acaa1263d4f508a04.jpg

 

Top and Side-

 

IMG_6712.jpg.a08deb1cdf12e13dabc199046234ca78.jpgIMG_6713.jpg.1b75c6f27e56779b7acec7b6dae45478.jpg

 

Some big boys-  Composita argentia-

 

IMG_6703.jpg.5d19b9d29889e243becb2dcc96ffff0d.jpg

 

Juresania nebrascensis-

 

IMG_6721.jpg.2668f2d83ef0b35fad7e8a9d00fdabf3.jpgIMG_6705.jpg.42cbabfb29404e943e01f3ed19c44353.jpgIMG_6710.jpg.ceaa8acc7a904b1919a3dcdde03628ac.jpgIMG_6711.jpg.ba74dc06fd1253037c09e17702942d3b.jpg

IMG_6737.jpg.1f04f8d53b933a7868420c4270859ff9.jpgIMG_6743.jpg.6827f35a47a1ff4f79f3a4853c13a219.jpg

 

Linoproductus cora-

 

IMG_6709.jpg.8e1859a4739caa149011e72820e7c2fd.jpg

 

Neospirifer dunbari-

 

IMG_6738.jpg.b3de7c9b346b479d5b8620b1a12101a7.jpgIMG_6739.jpg.9437784db9e9f63c47e16ec82cbdcaaf.jpgIMG_6740.jpg.aaf06f4a07d7d943397cbaf1507d2288.jpg

 

UNKOWNS-

 

Close up from above picture-

 

IMG_6741.jpg.2829a672225f63694b4756399cd535df.jpg

 

Unknown on a crinoid plate-

 

IMG_6730.jpg.ff11ab57dfa28d6fd897f7da6342cf5a.jpgIMG_6733.jpg.655a8719c8ab90ec175d3d65a5ca3efd.jpg

 

 

 

Multiple Species-

 

IMG_6724.jpg.dbd27a3737279a710d6a88b9b41d8259.jpgIMG_6725.jpg.00fa9a997071cc9cff962468069db490.jpgIMG_6726.jpg.6a1bd8be0d429a81975a7258af12db53.jpgIMG_6728.jpg.a0fccb99e2f3db0c544edfd33aa92e2c.jpgIMG_6729.jpg.febfea5ce6a092298836ed301c2af880.jpg

 

IMG_6734.jpg.5ef36c18e8fc19682ad2805b7d8e4cb9.jpgIMG_6735.jpg.bb52cdc810314001372917d911074d8e.jpg

 

 

 

 

IMG_6707.jpg

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O. M. G. :wub::wub::wub:

:faint::faint::faint:

Those brachs are huge.  Hope they aren't all gone before I get a chance to visit there.

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5 minutes ago, Peat Burns said:

O. M. G. :wub::wub::wub:

:faint::faint::faint:

Those brachs are huge.  Hope they aren't all gone before I get a chance to visit there.

LOL...I dunno Looks like he cleaned up!

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14 minutes ago, Raggedy Man said:

LOL...I dunno Looks like he cleaned up!

@Nimravis should we continue this discussion in the fossil trading forum :D;)

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Some very nice brachiopods! The ones with crystal inclusions are great, I have seen some there but not as nice as what you collected. 

 

That first unknown appears to be a part of a tooth-  it has the luster, color and texture of enamel. I couldn't say what it is now, but a little prepping might reveal enough to ID it. 

 

The second ones could be echinoid spines, I have found disarticulated echinoderm plates from this site in the past. 

 

Now you've really got me chomping at the bit to get out there again! 

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2 hours ago, Peat Burns said:

O. M. G. :wub::wub::wub:

:faint::faint::faint:

Those brachs are huge.  Hope they aren't all gone before I get a chance to visit there.

No, there are plenty left and more will pop out. Plus I do not see myself going out there in the next several months, unless they open up the Fossil Park at the old Lonestar Quarry, that is where I will be then.  @Raggedy Man

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1 hour ago, deutscheben said:

Some very nice brachiopods! The ones with crystal inclusions are great, I have seen some there but not as nice as what you collected. 

 

That first unknown appears to be a part of a tooth-  it has the luster, color and texture of enamel. I couldn't say what it is now, but a little prepping might reveal enough to ID it. 

 

The second ones could be echinoid spines, I have found disarticulated echinoderm plates from this site in the past. 

 

Now you've really got me chomping at the bit to get out there again! 

Thanks for the info and yes you should get out there. If you do make it, start from the highest level and go down, I would also start with the leftmost scree section. Lastly, check between the cracks of the blocks, when this thing came down, it popped some brachs out like gumballs.

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Beautiful finds as always! :) 

That first unknown is definitely a tooth with the crown on the left and root on the right,  looks like a very nice near complete Petalodus sp. 

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Nice trip! Seems like a nice little productive spot. Does this place produce some odd stuff other than brachs?

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1 hour ago, Archie said:

Beautiful finds as always! :) 

That first unknown is definitely a tooth with the crown on the left and root on the right,  looks like a very nice near complete Petalodus sp. 

Like this? Now that you pointed it out, I think I can see the shape.

 

5c3a9dd60a465_2019-01-1220_03_14.jpg.fcf8e27ec1bca42536321ba27bdeba67.jpg 

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1 hour ago, Al Tahan said:

Nice trip! Seems like a nice little productive spot. Does this place produce some odd stuff other than brachs?

The surrounding area also has Crinoids, trilobites, shark teeth and some other stuff.

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4 hours ago, Nimravis said:

No, there are plenty left and more will pop out. Plus I do not see myself going out there in the next several months, unless they open up the Fossil Park at the old Lonestar Quarry, that is where I will be then.  @Raggedy Man

I read that in the ESCONI news letter. Iwas gonna post a topic here for that, but spaced it out. Ill definitely be there thats for sure. I dont remember, but is that the one the sheriff's department used for training?

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40 minutes ago, Nimravis said:

The surrounding area also has Crinoids, trilobites, shark teeth and some other stuff.

:trilo: Nice!!! I love those trilobites.

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38 minutes ago, Nimravis said:

@deutscheben I took this pic-

 

5CF3D688-A7A3-447B-9964-643E4F5D15DB.thumb.jpeg.bb0d4e185a2231fe3a3ef46093280b5b.jpeg

The shape and the serrations look like Petalodus as @Archie suggested- that color is quite stunning too. 

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What a beautiful brachiopod bounty - WOW!!!  I'm glad to hear that your back is better - congrats on the great finds!

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1 hour ago, Monica said:

What a beautiful brachiopod bounty - WOW!!!  I'm glad to hear that your back is better - congrats on the great finds!

Thanks Monica.

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The tooth is beautiful with the two colors on the crown :wub:

Its hard to tell with the edge of the crown being damaged but in these new photos the edge of the crown looks like it may have been multi-cusped so I'm now wondering if it could be a Peripristis sp.

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2 hours ago, Archie said:

The tooth is beautiful with the two colors on the crown :wub:

Its hard to tell with the edge of the crown being damaged but in these new photos the edge of the crown looks like it may have been multi-cusped so I'm now wondering if it could be a Peripristis sp.

Archie- I looked up Peripristis sp. and it really does look like the pics I saw. Here are some more pics of this tooth. Thanks for the info.

 

60480DD3-4668-46C8-804E-C987AB948CBE.thumb.jpeg.efc442815d7a5f1be63e572ac400223d.jpegDEBB91ED-3C1E-42BF-8F3A-52A066AA2E16.thumb.jpeg.70acb65c14e205996b292175932ea137.jpegD7AFCE24-719A-45DC-9380-C8BE9A295082.thumb.jpeg.ce9c58396291a29d8396d53c2531c571.jpeg

 

 

 

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Oh yes I'm definitely convinced this is a Peripristis in lingual view with these photos, awesome find! Glad to be of help :D 

Sam

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