Odd Little Items

[Bullsnake]

Upper Pennsylvanian

Guessing Kansas city Group- Lane Shale- Wyandotte Limestone

First a summary of the site:

Nothing of note found at the limestone layer on the bottom

The shale layer above contains some heavily pyritized pelycepods, Trepospira gastropods, and crinoid. Found one horn coral and alot of little cylindrical shaped pyrite(?) pellets, about +/- half inch in size.

The limestone at the top is very fossiliferous, with different brach species, crinoid columnals, horn coral, and the occasional echinoid spine, all firmly imbedded and weathered.

The items in question were found in the rubble beneath the upper limestone exposure.

From the shale:

First item for id Size approximately 10mmX8mm

#1 #1a #1b

#1c #1d

The underside appears to be a fragment of the same thing, but there is no symmetry at all, as if it became cemented to the other side:

#1e #1f

Continued...

[Bullsnake]

The second item from the same general area.

I'm not sure of the mineralization; it looks silicified. I did a vinegar test, and it bubbled a little, but appeared to be more from the little crevices. Maybe just from residual matrix.

Size approximately 11mmX7mm

#2 #2a #2b

#2c #2d #2e

#2f (underside)

Thank you for looking, and any help,

Steve

[Missourian]

The strata look like either Westerville - Nellie Bly - Quivira - Cement City, or perhaps Captain Creek - Eudora - Stoner.

I'm drawing a blank on the fossils. The detail on #1-#1f is intriguing....

[Missourian]

Oh, d'oh.... #1-#1f is a crushed Punctospirifer.

#2-#2f is still a mystery.

[Auspex]

Genuine head-scratchers....

Any chance that #1 could be a lophophore structure?

[Bullsnake]

Oh, d'oh.... #1-#1f is a crushed Punctospirifer.

Thanks Missourian. Structure is a dead-ringer for Punctospirifer kentuckyensis.

Genuine head-scratchers....

Any chance that #1 could be a lophophore structure?

Thanks for the reply, Auspex. Speaking of lophophore, I'll go ahead and add this to the thread. I'm thinking lophophore on this one.

I think from Argentine limestone. Any other suggestions are appreciated.

Edited February 22, 2012 by Bullsnake

[Missourian]

I'll go ahead and add this to the thread. I'm thinking lophophore on this one.

I think from Argentine limestone. Any other suggestions are appreciated.

That's Annuliconcha:

[Fossildude19]

Steve,

Great finds!

What about a Rusophycus for #2?

Looks ichno-ish to me.

Thanks for posting.

Regards,

[Bullsnake]

Steve,

Great finds!

What about a Rusophycus for #2?

Looks ichno-ish to me.

Thanks for posting.

Regards,

Thanks, Tim.

I was leaning toward ichno as well. But, as you see, my research skills and knowledge base leave a lot to be desired.

I hate relying on you guys, but I love being able to...if that makes any sense.

Annuliconcha...well, at least I know what time period I'm in!

[Herb]

# 1 et al. crushed Punctospirifer

# 2 another partial and crushed something or another

# 3 I agree with Missourian, partial Annuliconcha.

[Bullsnake]

Thank you Herb. Wish this stuff would quit being crushed! (and partial)

[glacialerratic]

That Annuliconcha is gorgeous!

Could #2 be muscle attachment scars on the inside of a brachio valve? I've got a Devonian one that looks very similar.

[araucaria1959]

What about a compressed specimen of a rostroconch? (I have similar ones from the lower devonian, but I can't show pics of them since I gave them away for scientific studies for a while). I'm not sure - just an idea to think about. Are rostroconchs known from that formation?

araucaria1959

[squalicorax]

That's Annuliconcha:

That is a splendid Bivalve

[Bullsnake]

Thank you all for looking and replying!

What about a compressed specimen of a rostroconch? (I have similar ones from the lower devonian, but I can't show pics of them since I gave them away for scientific studies for a while). I'm not sure - just an idea to think about. Are rostroconchs known from that formation?

araucaria1959

I wish I could answer your questions, but I'm not familiar with rostroconch, let alone what all is in my local formations. I have alot to learn.

Thank you for looking!

[Missourian]

That is a splendid Bivalve

For the record, I pulled the pic off the Internet.