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matt2396

Chesterian Trip 3/18/17

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matt2396

Since I was on spring break and finally had a Saturday off, I decided to drive a few hours south to a couple of the best Mississippian exposures in my area. I've been to these spots in the past and have always had a pretty decent haul. Here are some of my finds from my most recent trip, enjoy!

 

Blastoids (complete with in situ shots)

blastoids.thumb.jpg.aa95469fa33bc64663ad6092c42126b5.jpg

58d41d5d2d8a8_blastoidin-situ4.thumb.jpg.147b321f1b9ef3408a041c58412539b8.jpg58d41d4d34697_blastoidin-situ2.thumb.jpg.dea5fb513050cea2630f861c7a47cb2e.jpg58d41d438654c_blastoidin-situ1.thumb.jpg.0eb55b2439bd4d2a61bafaa48ff6ff9d.jpg58d41d55a4507_blastoidin-situ3.thumb.jpg.82e5cdd0e982f4688126879daa4e3c45.jpg

 

Brachiopods

brachiopods.thumb.jpg.8ef606ee763acdf2cf4946c2c2e7139e.jpg

 

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matt2396

Bryozoans

58d421cb42ba4_bryozoans2.thumb.jpg.f4a498cf6b0040d7a73a6feffaa15b79.jpg58d421d1bc17f_bryozoans1.thumb.jpg.7c9e12e600ed0a1cb2b7260240af9b27.jpgarchimedes.thumb.jpg.2428941a0316ee4e1fdbe33c93911efe.jpg

 

 

Cephalopod (mold)

cephalopod.thumb.jpg.3f07f85766c0df217e10e75045ce8c14.jpg

 

 

Corals

corals.thumb.jpg.d105037abcb06e2ae340e91db4c4442a.jpg

 

 

 

 

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matt2396

Crinoids

crinoid.thumb.jpg.9d0de80f957b0305bdcae56f234478a4.jpg

58d422ce26215_crinoidin-situ.thumb.jpg.4fcd1ca311b5b4f00e5d8f216746e26f.jpg

A plate with multiple arms showing

58d422dba0b63_crinoidarms.thumb.jpg.51c2d1d404c42ee6532c4922ab8dfc57.jpg58d422e3724d0_crinoidarmszoom.thumb.jpg.70c695be8d5ab7ae00dd861df333d1da.jpg

 

 

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matt2396

Gastropod

gastropod.thumb.jpg.c58d30f41be6eba6e96696157431e08d.jpg

 

 

And finally, my favorite finds of the day...

 

Trilobites (pieces)

58d424475f7b7_trilobite1.thumb.jpg.3a4bb7006566079ef1b44e1951794d14.jpg58d424588f9cf_trilobite2.thumb.jpg.2c882527f8a1d8535fce2cbf347d6424.jpg58d4245e24882_trilobite3.thumb.jpg.1da8600512438609adcf6b254a245e9b.jpg

 

 

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matt2396

Trilobites (continued)

These last three were all found on the same 55 lb slab. I believe most of these belong to the genus Kaskia.

58d42535e189a_trilobite4.thumb.jpg.6496ba3c82281c9fb182be5f97d5ac0f.jpg58d4253d4ed87_trilobite5.thumb.jpg.e061fa847acf9c11817feb88835281ea.jpg58d42544edbd1_trilobite6.thumb.jpg.adeec815c9ade887498d49df116be1e2.jpg

 

-Matt

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Trevor

Excellent finds!

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Darktooth

Looks like a productive day, congratulations!

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Fossildude19

Wow, quite a haul!

Thanks for posting these. 

Regards,

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Wrangellian

:popcorn:

Wish I had a site like that accessible to me.

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sixgill pete

Great finds. I love seeing items like these on here that are not available here. Thanks for posting.

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CBOB

Those crinoids are sweet!  Nice finds!

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Archimedes

nice finds thanks for sharing

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deutscheben

What an excellent diversity of finds! I especially like the crinoids. Are these from southern Illinois?

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ynot

Nice finds and report!

Thanks for sharing.

 

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matt2396

Thanks everyone, and yes these are from southern Illinois

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matt2396

I meant to add this to the Crinoid section but I forgot. Here are a few Agassizocrinus pieces I found (although I'm pretty sure the one in the top left is something else).

Agassizocrinus.jpg

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JimB88

Good stuff..love the crinoids and blastoids!

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Castle Rock

Good stuff!  So, I am guessing that the blastoids are Pentremites godoni and P. pyriformis???  Years ago, I found a few of those in far southern West Virginia (Oakdale to be specific). The limestone there is REALLY hard and you could really only collect those that had weathered out.   Dave 

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Archimedes
On ‎3‎/‎23‎/‎2017 at 2:41 PM, matt2396 said:

Gastropod

gastropod.thumb.jpg.c58d30f41be6eba6e96696157431e08d.jpg

 

 

 

This is a Nautiloid, likely a Stroboceras 

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Archimedes
20 hours ago, matt2396 said:

I meant to add this to the Crinoid section but I forgot. Here are a few Agassizocrinus pieces I found (although I'm pretty sure the one in the top left is something else).

Agassizocrinus.jpg

These are fused infrabasal cones of Agassizocrinus occidentalis

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Archimedes

A crinoid.............  Camptocrinus

 

58d422e3724d.jpg.a32cd49b8f451ddfe20e1833298ebe3a.jpg

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Archimedes
On ‎3‎/‎23‎/‎2017 at 2:35 PM, matt2396 said:

Crinoids

crinoid.thumb.jpg.9d0de80f957b0305bdcae56f234478a4.jpg

 

A plate with multiple arms showing

 

 

 

The crinoid on the right is a Phanocrinus the species is likely parvaramus, would have to look at it closely to be sure

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Canadawest

Thanks for sharing.  Too many good finds to comment on them all!   My favourite postings are of fauna types that we also find in our area. The eastern slopes of our Canadian Rockies are made up of much of the same Carboniferous fauna. Similar but different genera.  

 

One fauna absent from our assemblages is Archimedes. Lots of other Bryozoa but not anything like that one.  Its also curious how trilobite Pygidiums dominate trilobite finds in most Carboniferous aged deposits around the world. I might find one complete trilobite for every 10 tails.  The irony is that we then have Cambrian deposits a mountain range to the west in which the heads dominate!

 

re the  blastoids. They are always just perfect little finds. Ours arent  yet studied.   We have Pentremites shaped ones but the majority are like squat pumpkins. Your part of the world seems to be 'Pentremites Central'.

 

Incredible little crinoid with the arms! Wow.  Even after studying paleozoic fauna for 4 decades, I find it hard to put a label on crinoids other than to a general type.

 

Anyways, you have some great 'stuff'. Its a plus to be able to go to a site and make a mini collection as it profides more insight into the ecosystem of that time.

 

 

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Jeffrey P

Really nice cross section of Mississippian finds you got there. I especially like the crinoids and the spirifer brachiopods. All of those blastoids and Archimedes are very cool too. What you have reminds me of my first trip collecting Mississippian fossils in Kentucky last fall. Congratulations and thanks for sharing.

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matt2396
On 3/24/2017 at 6:33 PM, Archimedes said:

A crinoid.............  Camptocrinus

 

58d422e3724d.jpg.a32cd49b8f451ddfe20e1833298ebe3a.jpg

 

Here are some better pictures, is it a whole crinoid?

rsz_20170326_100420.thumb.jpg.9a604e2532bbbe29dfb3847033a16dbe.jpgrsz_20170326_101757.thumb.jpg.5cd90f652d3278d4ee7ff6abdfdc5945.jpgrsz_20170326_101745.thumb.jpg.692fea6c8921586a9a424bc384dfb2b9.jpgrsz_20170326_101900.thumb.jpg.78176710c493002dff8e25a61a799213.jpg

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