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Showing results for tags 'mazon creek'.
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 18mm X 10mm (11/16" x 3/8"). MILD SULFURIC ACID BATH.-
- francis creek shale
- mazon creek
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 22mm X 14mm (7/8" x 9/16"). SINGLE WHORL.-
- francis creek shale
- mazon creek
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 27mm X 25mm (1-1/16" x 1"). SINGLE WHORL WITH INTERESTING PROXIMAL FEATURE.-
- francis creek shale
- mazon creek
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 21mm X 18mm (13/16" x 11/16"). CONVEX HALF BROKEN IN HALF, GLUED.-
- francis creek shale
- mazon creek
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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.
- 25 replies
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I had this Mazon Creek arthropod open recently. It was collected from the Braidwood fauna (freshwater/terrestrial), so initially I thought this was just a tiny syncarid shrimp as they are the most common arthropod to find here. However looking at it closer, I'm not so sure and was hoping for a second opinion. In particular, the legs are short and spiny and do not look like shrimp legs to me, although I may be wrong. Here are images of the positive and negative sides of the "head", middle, and rear, respectively. I put "head" in quotes because I can't tell if this is the head of the animal, or if it continues more into the concretion. @RCFossils @Nimravis @Mark Kmiecik @deutscheben @stats @bigred97 @flipper559 Any thoughts are appreciated.
- 7 replies
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- 3
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- arthropod
- carboniferous
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5 Mazon Creek specimens that need confirmation or species ID
Mark Kmiecik posted a topic in Fossil ID
Calling on the usual members, again, to either confirm or refute my attempt at ID on these five Mazon Creek specimens. Thanks in advance. @bigred97 @connorp @deutscheben @fiddlehead @flipper559 @Nimravis @Plantguy @RCFossils @Runner64 @stats @TheRocksWillShoutHisGlory- 5 replies
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- francis creek shale
- id help please
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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 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
- 5 replies
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- 3
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- fauna
- mazon creek
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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
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Mazon Creek Fossil jelly fish
Unknowncat posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello everyone, I hope everyone is doing well I have recently started getting myself into collecting fossils and I came upon this lot of jellyfish fossils so I purchased them because they seemed interesting and it’s something I never had. Do these look fine ? To me they just look like stained rocks but that could just be because jellyfish are soft bodied organisms. Thanks for your input -
I was lucky enough last week to be able to make my second donation to the collections of the Field Museum of Natural History in Chicago. This donation consisted of two Mazon Creek finds from the river itself, both collected on the I&M Canal outing last year. The first is an extremely rare tetrapod larva. The second fossil is an exceedingly well-preserved Orthacanthus tooth, featuring serrations in the cusp, a very rare trait for Mazon Creek teeth of this sort. It may prove to be complete as well. I was able to visit the museum to make the donation this time and it was an honor to go behind the scenes and talk to professional paleontologists about these specimens and Mazon Creek collecting. Thanks again to @jdp for helping make this possible!
- 4 replies
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- 11
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- carboniferous
- chicago
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 15mm X 3mm (5/8" x 1/8"). CALCIFIED.-
- francis creek shale
- mazon creek
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(and 3 more)
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 20mm X 5mm (13/16" X 3/16").-
- francis creek shale
- mazon creek
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(and 3 more)
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E0017 Macroneuropteris scheuchzeris basal pinnule
Mark Kmiecik posted a gallery image in Member Collections
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 15mm X 13mm (5/8" X 1/2"). BASAL PINNULE.-
- francis creek shale
- mazon creek
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN(EXPOSED PORTION) 10mm X 3mm (3/8" x 3/16"). SPECIMEN PARTIALLY CONCEALED IN MATRIX.-
- francis creek shale
- mazon creek
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 20mm X 15mm (13/16" x 9/16").-
- francis creek shale
- mazon creek
-
(and 3 more)
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 25mm X 22mm (1" x 7/8").-
- francis creek shale
- mazon creek
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(and 3 more)
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 9mm X 8mm (3/8" x 5/16").-
- francis creek shale
- mazon creek
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(and 3 more)
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C0061 Macroneuropteris scheuchzeri basal pinnule
Mark Kmiecik posted a gallery image in Member Collections
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD. SPECIMEN 20mm X 11mm (13/16" x 7/16"). BASAL PINNULE.-
- francis creek shale
- mazon creek
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(and 3 more)
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SINGLE PINNULE. SPECIMEN 16mm X 8mm (5/8" x 5/16"). PEANUT OIL APPLIED.-
- francis creek shale
- mazon creek
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 20mm X 12mm (13/16" x 1/2").-
- francis creek shale
- mazon creek
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(and 3 more)
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From the album: My collection in progress
Pecopteris villosa Brongniart 1822 Location: Mazon Creek, Illinois, USA Age: 323 - 299 Mya (Pennsylvanian, Carboniferous) Measurements: 2x12,5 cm Kingdom: Plantae Division: Polypodiophyta Class: Polypodiopsida Subclass: Marattiidae Order: Marattiales Family: Marattiaceae-
- carboniferous
- fern
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What could it be - size is around 1" or 2.5 cm? Some sort of shrimp? I can't check the literature. I am in Maryland right now at my daughter's place doing babysitting. Man, is that exhausting!
- 2 replies
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- 3
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- arthropode
- carboniferous
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Calling on the MC regulars again and anyone else who may have a clue. This time I'm not even going to venture a guess. It's up to you guys to ID at least the genus. Thanks again. @bigred97 @connorp @deutscheben @fiddlehead @flipper559 @Nimravis @Plantguy @RCFossils @Runner64 @stats @TheRocksWillShoutHisGlory
- 6 replies
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- francis creek shale
- id help
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(and 3 more)
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