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I had a nodule that I picked up at pit 11 a couple of weeks ago split open, however basically everything about it has me stumped. There are tiny dark speks that are iridescent, some turn blue, others green and one of them pink with different light angles. Are these bits opalized? I'd like to know before doing anything else to prep it since opal can be sensitive to moisture. I've heard of iridescence in a lingula specimen, but other than that I'm unfamiliar with any mazon material having iridescence, and I'm wondering how that could happen inside a concretion. Furthermore any ideas what it is? random plant matter? coprolite? blank with mineralization?
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Hello, it’s been awhile! I’ve been opening up some Mazon Pit 11 stuff and came across this thing. I try to keep myself pretty grounded when it comes to Mazon stuff, because I’m horribly bad at ID’ing anything in a concretion. That said, any chance this is an annelid worm? Thank you as always!
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From the album: Fossil Collection: DC Area and Beyond
Essexella asherae Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian)- 2 comments
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From the album: Fossil Collection: DC Area and Beyond
Plant, Coprolite Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian)-
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From the album: Fossil Collection: DC Area and Beyond
Plant Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Essexella asherae Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian)- 2 comments
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From the album: Fossil Collection: DC Area and Beyond
Unknown Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Plant Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Plant Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Plant Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Plant Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Plant Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Plant Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Plant Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Plant Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Plant Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Coprolite Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
From the album: Fossil Collection: DC Area and Beyond
Wood Fragment Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian)-
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From the album: Fossil Collection: DC Area and Beyond
Myriapoda Mazon Creek, IL (Mazon Creek Private Property) Francis Creek Shale Carboniferous (Middle Pennsylvanian) -
Mazonia wildlife management area - Other paleozoic finds.
Rockwood posted a topic in General Fossil Discussion
This photo was taken in the historical society museum in Braidwood Ill. Notice the crinoid pieces. I found similar specimens along with rugose, and tabulate corals in the Mazonia wildlife management area nearby. A few members seemed to not believe that such things could be found there. @Mark Kmiecik was one as I recall. They are on the piles just inside the entrance to the northern unit of the park coming from Braidwood by the way. Does this help anyone with an explanation. -
Hi, I'm new to the forum and relatively new to fossil hunting. I've been collecting rocks for years, but only last year realized how easy it is to find fossils in my new state. I'm hoping the folks around here can help me identify what I find! I'll start with a nodule I collected at Mazonia-Braidwood State Park (IL) yesterday. Three views of the same fossil. Any thoughts on what this is?
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I got some mazon fossils and was opening them. I am new to opening and ID these fossils and would be thankful for any help. The first photo seemed like there was more then 1 thing but wasn't sure. With the last photo, any good way get the white stuff off?
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This is the Mazon Monday post from the ESCONI website this morning. There were numerous Fossil Forum users.... @bigred97 @flipper559 @RMAA. I know there were others there. Please add yourselves. ---------------------------------------------------------- The Fall 2023 Braceville Field Trip is in the books... is is that on the web? It was a enjoyable, but somewhat wet, weekend. We had rain at the very end of the day on Saturday and most of Sunday. The mud was not too bad. The dry conditions this late summer probably left the shale in a state where it could soak up a good bit of the water. We had visitors from out of state both days. Alan Keith was very generous and passed out fossils from Texas and Oklahoma. The fossil dump was as good as ever. We had quite a few buckets on both days. Unfortunately, not as many people stuck around until 11:30 on Sunday, as we had a steady rain for most of the morning. Material was supplied by Ralph Jewell, @Nimravis Andrew Young, Rich Holm, Alan Keith, and others. Thank you for your contributions! Good morning! Here is a little introductory video on the walk in on Sunday morning. It rained quite a bit Saturday night, so the shale was sticky in places. Here is a Mazon Monday post about the history of the Braceville spoil pile. It was called worm hill by the old timers. Fossil Dump on Saturday Good luck horseshoe found by Chris Berg @bigred97. Huntin' for fossils! Smiles from the pile! Mud! Poison ivy! Steam from the hill when the sun came out on Sunday afternoon Open fossils found! Say goodbye to another successful field trip!
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Hello! I had the privilege of joining ESCONI to Mazon’s Pit 4 yesterday and came across this concretion. There’s a very good chance it’s nothing, but I thought the 3D shape might be peculiar. The concretion is about 1.5 cm wide in total. Thank you for looking!
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I'm taking a feather from @Nimravis and starting a thread about repairing Mazon Creek fossils. I use the freeze/thaw method, but I do tap them lightly once in a while. That usually isn't what causes concretions to fall apart. Water creeping into the rock finds all the weak spots and sometimes a concretion basically shatters. Some localities are have hardier concretion than others. I have found that Pit 2, 3, and 4 have great preservation, but Shadow Lakes isn't referred to as Shatter Lakes for nothing. Super glue is nice, but I generally use Elmer's Glue as you can easily dissolve the glue in water and try again. Here is the first installment... a Macroneuropteris scheuchzeri from Pit 3. Collected last year during the construction on IL 129, but opened this year via freeze/thaw. I used Elmer's Glue on this one. Cheers, Rich