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bigred97

Here is a concretion I found at Braceville. I'm curious if others have found ones like this as well. When the outer shell came off, the inner part looked like it had already been split and was glued back together. This is the second one I've found that has this pentagon shape. I've found others that are split along what looks like the more typical plane of a concretion. In each case, when it opens along these lines, there is a white, sometimes crystalline, substance. But no recognizable fossil. This one split into many pieces all with that white substance (I suppose it must be calcite). I wonder if these have split years before and then re-joined. I have only found these in Braceville.

20Concretion368Braceville.thumb.jpg.62c1cbe0dca4c1d458363f38e9c43017.jpg

21Concretion458Braceville.thumb.jpg.0bffa786c78933620208d167978d4a69.jpg

22Concretion571Braceville.thumb.jpg.0e0f90121ba92c4fdae740ca2bf3dd5f.jpg

 

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Mark Kmiecik
On 7/6/2019 at 3:48 PM, bigred97 said:

21Concretion458Braceville.thumb.jpg.0bffa786c78933620208d167978d4a69.jpg

Typical Francis Creek Shale septarian. Pentagonal, hexagonal, heptagonal and way out there crazy pattern are all common. I have one sitting in the front yard that is flat and round and about 15 inches in diameter, and many smaller ones that I have kept and there's many, many that I have discarded or even ignored while collecting. They are fascinating at first. I like the multi-colored ones they find in Texas. (And yes, that's calcite)

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bigred97

Thanks, Mark. I suppose I will start to leave these behind knowing that they aren't going to contain a fossil. Or maybe split them open where I find them. I'd certainly like to avoid carrying back anything that I can tell from the outside won't contain a fossil - my back will thank me!

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bigred97

This next one is from Pit 11 and I believe it is an acorn worm, Mazoglossus ramsdelli. Not terribly well-preserved (the concretion was particularly crumbly) but seems to have the correct shape at least.

23AcornWorm1040Pit11.thumb.jpg.6634d72f0201f112f77e6fe839294afd.jpg

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Mark Kmiecik
8 minutes ago, bigred97 said:

Thanks, Mark. I suppose I will start to leave these behind knowing that they aren't going to contain a fossil. Or maybe split them open where I find them. I'd certainly like to avoid carrying back anything that I can tell from the outside won't contain a fossil - my back will thank me!

They become less interesting the more you see them, but those who don't have access to them may see them as something collectible. In retrospect I would have collected and kept every one I found and either given or sold them to those who expressed interest. Some of them are really cool.

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Plantguy
On 7/1/2019 at 9:18 PM, bigred97 said:

This next one is one of my favorites, because it's the first Mazon Creek fossil I ever found, on my first trip to Pit 11 in May of last year. I found this Neuropteris leaf already open and just couldn't believe it. If I wasn't hooked already, I sure was then! I love the detail in fossils like this. I remember just crouching there with it in amazement. Followed up with many minutes of searching for the other side, which I never did find.

19Neuropteris779Pit11.thumb.jpg.62a6da81bd524aaf9341b766117ebe75.jpg

Yep, thats a beauty! congrats. 

Regards, Chris 

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bigred97
On ‎7‎/‎6‎/‎2019 at 7:16 PM, Plantguy said:

Yep, thats a beauty! congrats. 

Regards, Chris 

Thanks, Chris!

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bigred97

Mark, I did like this septarian. I would probably take one that looked like this home again. But I would know not to break it apart next time!

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Mark Kmiecik
8 hours ago, bigred97 said:

Mark, I did like this septarian. I would probably take one that looked like this home again. But I would know not to break it apart next time!

If you take them all and no one else does you will eventually have cornered the MC septarian market and will rule the monopoly you have created. MWAHAHAHAHA!!!! Once there are none left except the ones you have, the possibilities of fame and fortune are endless. Or so I've heard. :default_clap2:

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bigred97

Yes, then I can sell this one as a Game of Thrones dragon egg - starting to hatch! :heartylaugh:

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Mark Kmiecik
38 minutes ago, bigred97 said:

Yes, then I can sell this one as a Game of Thrones dragon egg - starting to hatch! :heartylaugh:

Yes, I can see it all now. :D

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bigred97

I can’t tell what this next one might be. It’s from Braceville. I was thinking it was maybe part of a sea cucumber or shrimp. Then I saw a picture of Anthracophausia ingelsorum and could see some resemblances there as well. I’d appreciate any thoughts from the group.

24SeaCucumber1000Braceville.thumb.jpg.4cc763bcee1f07205a918154948a68ba.jpg

25SeaCucumber903Braceville.thumb.jpg.f73c2865cf52dbf47d2c110630c930e4.jpg

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Mark Kmiecik
10 minutes ago, bigred97 said:

I can’t tell what this next one might be. It’s from Braceville. I was thinking it was maybe part of a sea cucumber or shrimp. Then I saw a picture of Anthracophausia ingelsorum and could see some resemblances there as well. I’d appreciate any thoughts from the group.

I don't know. Not familiar enough with that specie. But I did find this feature interesting:

 

Untitled.png

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RCFossils
On 7/8/2019 at 5:33 PM, bigred97 said:

I can’t tell what this next one might be. It’s from Braceville. I was thinking it was maybe part of a sea cucumber or shrimp. Then I saw a picture of Anthracophausia ingelsorum and could see some resemblances there as well. I’d appreciate any thoughts from the group.

24SeaCucumber1000Braceville.thumb.jpg.4cc763bcee1f07205a918154948a68ba.jpg  25SeaCucumber903Braceville.thumb.jpg.f73c2865cf52dbf47d2c110630c930e4.jpg

This is a shrimp molt.

it appears to be Belotelson.

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fifbrindacier

Wonderful finds bigred97, i wish i had a site like mazon creek nearby.:envy:

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bigred97

 

27 minutes ago, RCFossils said:

This is a shrimp molt.

it appears to be Belotelson.

Shrimp molt - interesting! Thanks, RC!

 

10 minutes ago, fifbrindacier said:

Wonderful finds bigred97, i wish i had a site like mazon creek nearby.

fifbrindacier, thanks! I'm about 2 1/2 hours away which makes it a little tough to get out there all that often, especially with two little boys at home. Sometimes I wish I was closer but then I give myself a shot of perspective - I'm lucky to be as close as I am!

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Mark Kmiecik

I'll buy shrimp molt, but I still want to know what those spikes I highlighted are. I find those more interesting that the rest of the fossil.

 

EDIT: Oh, poop. I just looked at it again. That's the telson, isn't it?

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bigred97

Mark, I was thinking when I looked at the pictures of Belotelson in Wittry that the part I circled in red below is perhaps the fan tail. It just seems to have the same shape. If so then this would be just the tail end of the molt. In any case, I don't know what the spike you highlighted is. Could it perhaps be a leg that came off with this part of the molt and is turned at a weird angle? Or maybe you are right and that is in fact the end of the tail side, I'm certainly no expert on this topic. Anyhow, thanks for your question, Mark, you've certainly piqued my curiosity! Chris

 

26SeaCucumber1080Braceville.thumb.jpg.abd8b048c93df7755041b601a237183a.jpg

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Mark Kmiecik
20 hours ago, bigred97 said:

Mark, I was thinking when I looked at the pictures of Belotelson in Wittry that the part I circled in red below is perhaps the fan tail. It just seems to have the same shape. If so then this would be just the tail end of the molt. In any case, I don't know what the spike you highlighted is. Could it perhaps be a leg that came off with this part of the molt and is turned at a weird angle? Or maybe you are right and that is in fact the end of the tail side, I'm certainly no expert on this topic. Anyhow, thanks for your question, Mark, you've certainly piqued my curiosity! Chris

 

26SeaCucumber1080Braceville.thumb.jpg.abd8b048c93df7755041b601a237183a.jpg

Remember that it  may be a molt. So a leg that's pressed flat with no internal features to support it will likely become about twice as wide, perhaps more. In addition parts may be flipped, inverted, superimposed, twisted or pointed in an unnatural direction. This is the reason I'm not totally convinced this is a shrimp molt. It may be part of a different arthropod. This is another one of those fossils that I want to hold in hand and examine using a 10x loupe.

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bigred97

Hi Mark, I did my best to get more detailed pictures. I even used my loupe and took pics through it for some of these. This will take a couple posts, I have 6 pics to post. I think this is the best I can get. If we lived closer I'd drive on over and show it to you! Chris

27Belotelsonmolt980Braceville.thumb.jpg.dfbf02de34357e9c73c88612e97f3de4.jpg

28Belotelsonmolt1010Braceville.thumb.jpg.7423a1c01192b520ea2cc08a44b4c95c.jpg

29Belotelsonmolt829Braceville.thumb.jpg.aed37ed343299c93a7b052cb118b0bad.jpg

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bigred97

30Belotelsonmolt774Braceville.thumb.jpg.c34b613239bb749892b71915e0320b22.jpg

31Belotelsonmolt1160Braceville.thumb.jpg.aed8b5cbf5aa5706e85664f1c86d1df9.jpg

32Belotelsonmolt1230Braceville.thumb.jpg.96195860744b02f58317b22153180afd.jpg

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