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Showing results for tags 'Mazon Creek'.
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES OF SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. CAST PRESENT, 25mm x 15mm x 5mm (1" x 5/8" x 3/16") . ACETIC ACID BATH APPLIED.-
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- francis creek shale
- mazon creek
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES OF SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 55mm X 9mm (2-1/8" x 3/8"). ACETIC ACID BATH APPLIED.-
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- francis creek shale
- mazon creek
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From the album: Mazon creek assortment
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From the album: Mazon creek assortment
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Had this concretion open today. I'm pretty confident it's something vertebrate. Maybe a lungfish plate? @jdp @RCFossils Thanks for any help.
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Can anyone confirm that this Mazon Creek specimen is of Aphlebia?
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A couple months ago I received a message from a friend letting me know of an opportunity to collect a usually inaccessible Mazon Creek site. The area used to be a popular with collectors but has since been reclaimed as a subdivision. A house was finally being built on one of the last undeveloped lots, and this meant spoil piles while the foundation was being laid. I initially planned to go later in the week, but instead decided to wake up early the next day and drive down. This ended up being a lucky decision, as the foundation was filled that very next night. The site was not superbly productive - I only gathered about a gallon of concretions for the two hours I was there. I have finally finished processing them, and although I did not find anything super rare, I am still thrilled to be able to add specimens from this site to my collection. The site Some in situ concretions Here are the finds I kept. Most of the other concretions were blanks or had poor quality plant bits. Annularia inflata Annularia radiata Radicites columnaris (an indeterminate root) A nice three-dimensional Myalinella meeki bivalve
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- 14
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- carboniferous
- illinois
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I'm not quite comfortable with the possible IDs offered for these three fossils. Again, I sincerely thank anyone who chimes in with even a guess. A0003 -- Myalinella sp. or other bivalve, or something else? It has been suggested this is a Coprolite. C0004 -- Lycopod leaf upper end both halves? The part that looks like Coprolite has a "peanut shell" pattern in the hollow of the half on the right. C0085 -- Cyperites? I'm not convinced. Not comfortable with the taper. Perhaps a spine, either plant, arthropod or marine?
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- bivalve & burrow?
- coprolite?
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I've been spending a lot of time lately studying the Mazon Creek flora, and am continuously astonished by the diversity and quality of specimens that can be found. I don't think we see enough plants on the forum, so I figured I would go ahead and share some of my favorite finds. First is a specimen I recently shared, and a fitting start to the thread. This is Crenulopteris acadica, the most common true fern found in the Mazon Creek flora. It has been the most common plant I find, accounting for probably half my finds. Next is a favorite of mine. This is a section of Calamites (probably C. cisti) encrusted by a number microconchids. I always enjoy finding concretions with associations of different species. Last for now is a specimen of the rare seed fern Callipteridium neuropteroides with great coloration.
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- carboniferous
- flora
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I was inspired by @Mark Kmiecik and his quality photographs to finally learn some basic image editing. I had this beautiful Crenulopteris acadica fern open yesterday and figured it would be a good specimen to make a first attempt. Let me know your thoughts.
- 5 replies
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- carbondale
- carboniferous
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From the album: Miscellaneous
Pecopteris sp.? Mazon Creek Not experienced with flora, so ID is uncertain.- 1 comment
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- carboniferous
- fern fossil
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For the most part, fertile ferns are rare in the Mazon Creek flora. The only exception being Diplazites, of which ~1/2 of all specimens are fertile. This is my first non-Diplazites fertile fern. I really like the interplay between the white mineral deposits, the brown matrix, and the scattered pyrite crystals - a very artistic specimen I think. My best guess is that this is Cyathocarpus hemitelioides, but I am not positive. Close up of a fertile pinnule Close up of sterile pinnules at the base
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- carboniferous
- fern
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And another four that I need help with. Thank you in advance. E0021 - Pecopteris? Other? E0040 - Mariopteris? Neuropteris? Best guess? Venation not clearly visible. E0098 - Cyclopteris obicularis? This one I'm fairly sure of. I0002 - Paleocaris typus? Acanthotelson? Other?
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- acanthotelson
- cyclopteris?
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Four more for ID or confirmation. Again, thank you for your help. A0003 - Myalinella? Other? C0056 - Orthacanthus? C0086 - I have no idea! E0015 - Cyclopteris or Macroneuropteris basal pinnule? (venation forks)
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- cyclopteris?
- mazon creek
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Here's four more with which I need help identifying and/or confirmation of ID. Thank you. C0004 - You tell me and we'll both know! C0047 - Calamostachys? Bowmanites? Other? C0052 - Coprolite? No, it's not a fish. C0055 - Mariopteris? Neuropteris? Other?
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Three more Mazon Creek fossils for your consideration and hopefully ID to species level. Thank you very much in advance for all the help I'm going to need. Crenulopteris acadica ? Lepidostrobophyllum ovatifolius ? Lepidostrobophyllum lanceolatus ?
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- lepidostrobophyllum
- mazon creek
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I have six more MC specimens that I need help with identifying. Again, down to species level if possible. The only one I'm fairly sure of is the Coprolite.
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- animal
- mazon creek
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Might anyone be able to put a genus (and species?) to this Mazon Creek specimen? The nodule itself is about 4" in length. It may be a polychaete—or not. Thanks! I appreciate your expertise. IMG_0178 copy.tiff
- 7 replies
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- mazon creek
- phyllodocida?
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Sometimes, when you freeze/thaw Mazon Creek fossils they split more than just in half. Sometimes you get 3 or 4 pieces. Sometimes you get 47 larger ones (more than 1/4") and LOTS of tiny ones. You make the best lemonade you can with the lemons you've been given. Here's a "before" and "after" of one I repaired today. Unfortunately, too much of the surface detail crumbled into pinheads and powder. Would have been a real beauty if nature wasn't as cruel as it is.
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- 5
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- crenulopteris acadica?
- freeze/thaw method
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Perhaps one of the Mazon Creek experts could help with the ID of this Was sold to me as Mazon Creek Pecopteris Look a bit different to the usual Pecopteris that I have seen
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5 Mazon Creek specimens that need confirmation or species ID
Mark Kmiecik posted a topic in Fossil ID
Hoping for confirmation and/or species identification. Thanks in advance. Not sure of much anymore with all the recent changes. Annularia inflata? Alethopteris serlii? Calamites cistii? Pecopteris? Crenulopteris? species? Pecopteris? Crenulopteris? species?
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- 5
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- alethopteris
- annularia
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The smaller specimen pictured opened this morning and reminded me of the larger specimen which I found earlier this year. They are very similar looking. My first thought was Cordaites borassifolius due to the linear striations, but the specimens are fragmentary and the preservation is not great so they could also just be indeterminate wood fragments. I don't think I've seen a Cordaites specimen in person before so I am not positive either way. Any thoughts are appreciated.
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- carboniferous
- illinois
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Here's two more that need ID, hopefully to species level.
- 3 replies
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- lepidostrobus?
- mazon creek
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A couple weeks ago I ran into a former collecting friend at the ESCONI Show. I had not seen him in about 20 years and we talked about the old days and my fossil mentor Walter Lietz, who we both collected with. In the course of the conversation he mentioned that he had a collection for sale, not his own, but another family member. I advised him that after I got back from MAPS, that I would like to see it. Today I drove the 30 minutes to his house and took a cursory look at the totes of fossils. After looking at the stuff, we came to a price and I brought the fossils home. It contains all different kinds of things and I will have to go through it to see exactly what is in there. Here is a pic of my car with the totes and bags of fossils. Here are some of the fossils - Eurypterid - collected on an ESCONI trip to Linton, Indiana in 1988. Same type of fossils found in the Mazon Creek area. Rhabdoderma Coelacanth- found in 1985 at Pit 11. Looks like it has stomach contents or coprolite. A nice Annularia. Tully Monster parts ( tails, some with the neck and transverse bar). Some tar beetles from California. I will continue to post more as the day and weeks go by.
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- fossils
- linton indiana
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I collected this specimen last year but still can't decide on an ID, it's pretty fragmentary. Any thoughts are appreciated. @bigred97 @flipper559 @stats @Nimravis @deutscheben
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- carboniferous
- flora
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