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Today was a nice “Mazon Creek Fossil Day” at the Coal City Library presented by ESCONI (Earth Science Club of Northern Illinois). The library. There were about 45 people in attendance which included some FF members. There were a number of displays that contained Mazon Creek fossils and you were able to purchase the various MC books by Jack Witry @fiddlehead. Fossils- Some of the attendees- (L) Rich @stats and Marty. Continued on next post.
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Hi. I was planning to take a look at the Braceville Shaft Mine site this summer, ... can the public access it?
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I'm in the process of photographing and cataloging specimens from a new site and thought some here might enjoy seeing some specimens as I go. These fossils were collected in eastern Illinois from the roof shales of the Herrin (No. 6) Coal. They are middle Pennsylvanian (Desmoinesian) in age. The Herrin (No. 6) Coal is the second to last coal member of the Carbondale Formation. For reference, the Mazon Creek biota occurs in the Francis Creek Shale Member, which overlies the first coal member of the Carbondale Formation, the Colchester (No. 2) Coal. Here's a general stratigraphic section of the Carbondale for reference. This biota has similarities to the Mazon Creek biota, but the flora especially is quite different. The fauna so far seems typical of terrestrial Pennsylvanian sites: bivalves, branchiopods, indeterminate arthropod parts, and a single shark egg. This biota is not well studied, and thus many names here are provisional pending a possible formal study. Scale bars are 1cm unless noted otherwise. Dunbarella striata Calamostachys tuberculata Alethopteris gibsonii Cyperites bicarinatus
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@RCFossils @stats @connorp @Mark Kmiecik Here are a couple more that I put to the side and do not recall if I looked for ID’s in the past. I just can’t feel comfortable with an id on this worm, what do you think? It is a cutie. 1. 2. This is reminding me of an Octomedusa, but do not recall seeing one with this type of preservation. 3. Here are Three Amigos- any ideas?
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OK, so I am a complete newcomer to the world of fossils, and although I do have the references, I can't seem to pin this down. Appreciate any help I can get. Warren
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As with many Mazon Creek pieces, a lot is left up to interpretation and imagination. Looking to see what people think about this piece. @RCFossils @stats @Mark Kmiecik @connorp @deutscheben and any other FF members.
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Not really sure what to make of this one and hoping someone can help ID. Thanks in advance. Pit 4 area
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I came across this piece tonight and am looking to see what others think. This piece has what appears to be a faint gut line and 2- eyes. I was thinking possible Hagfish, but not convinced. @RCFossils @stats @Mark Kmiecik @connorp @deutscheben
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I just came across this piece that was found at Pit 11. I am leaning towards a weird preservation for a Octomedusa pieckorum, but it reminds me of something else that I cannot put my finger on, non Mazon Creek related. What do you think? @RCFossils @stats @Mark Kmiecik @connorp @deutscheben And any other Forum members.
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Here are a couple pieces that I want to post to see what others think @RCFossils @Mark Kmiecik @stats @deutscheben @connorp This first piece, I think might be a G. Greenei. This next piece may be a “blade”, Esconichthys apopyris. And lastly, 2 worms.
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Took a second trip to cole hill rd yesterday trying for different formations. I couldn’t locate any but found some similar hash plates and a few new items. waiting on a measuring block from @Misha in the mail but the sizes are approximately 3 to 6 inches on the hash plates.
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I am thinking that this is an example of Palaeoxyris prendelli, if it is, I believe it is my first of this specific one. @RCFossils @stats
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Just came across this piece in a box of loose concretions. It has the look of an insect wing, but believe it might be a Neuropteris inflata leaf. What do you think? @RCFossils @deutscheben @stats @connorp @Mark Kmiecik Sorry for the darker pics, but this is a real black concretion.
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I have two pieces here that are odd and cannot pinpoint an ID, any help from @RCFossils @Mark Kmiecik @stats @connorp @deutscheben would be appreciated. #1 #2
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@RCFossils @Mark Kmiecik @connorp @deutscheben @stats Looking for thoughts on these few pieces- It looks a bit like the barnacle Illilepas damrowi Thinking possible Reticulomedusa greenei This next one is odd looking and the only thing that I can think of is an Octomedusa pieckorum. Lastly, looking for something on this bivalve.
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Here is a piece that I am getting a shrimpy feel, stomatopod? @RCFossils @Mark Kmiecik @stats @connorp @deutscheben
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This worm(?) is vexing me. I've got some clues, but none of them seem to add up to a definitive ID. Any ideas? These photos are from the vendor's listing of the specimen. Yes, I've been through the books, several times. I'm far from an expert in MC material, so any assistance would be greatly appreciated.
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I have two odd pieces tonight and was wondering if anyone has an idea. @RCFossils @deutscheben @Mark Kmiecik @stats @connorp This first one it odd looking, I am thinking fauna, but wonder if it is a seed. This next piece reminds me of an insect, but I think it might be a worm.
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@connorp @deutscheben @Mark Kmiecik @RCFossils Here are a few pieces that I am looking for ID’s on- I believe this first two pieces may be Mariopteris, if yes, what species? I have seen something like this before, but cannot remember where, I am thinking some type of seed? Lastly, I am looking for an ID on this poorly preserved, bushy looking worm. I was first thinking Palaeocampa anthrax, but it just does not seem correct.
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I am looking to see what members think this piece might be, I am pretty sure that it a Fauna fossil, but the length and lack of real detail have me scratching my head.
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I am looking to see what members this this little guy is. I was thinking that it is possibly the Arrow Worm, Mazoglossus ramsdelli, but am not convinced, the ribbing looks odd. @RCFossils @stats @Mark Kmiecik @deutscheben @connorp
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@stats, @fiddlehead, @Mark Kmiecik, @deutscheben, @connorp @RCFossils and any other member. Here is a piece that I cannot put my finger on and don’t recall seeing one before. Any help would be appreciated.
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Here are 3 Mazon Creek pieces that I am wondering about, I will tag the usual suspects. Thanks in advance. @stats, @Mark Kmiecik , @fiddlehead, @RCFossils, @connorp, @deutscheben