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Showing results for tags 'mazon creek'.
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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
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In the freeze that process it is common for concretions to flake, on a piece of the flaked off rock I came across multiple pectin fossils including a couple that are about 1mm and am asking for help identifying the species.
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD. SPECIMEN 24mm X 5mm (15/16" x 1/4") MILD SULFURIC ACID BATH APPLIED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 18mm X 17mm X 7mm (11/16" x 11/16" x5/16") FRAGMENT OF CONCAVE HALF GLUED BACK INTO POSITION. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & HAMMER BLOW. SPECIMEN 15mm X 8mm (5/8" x 5/16"). BACK SIDE OF CONVEX HALF GLUED BACK ON. MILD SULFURIC ACID BATH APPLIED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 13mm X 7mm (1/2" x 5/16"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 22mm X 13mm (7/8" x 1/2"). -
Calling on the usual members 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
- 13 replies
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- francis creek shale
- mazon creek
- (and 3 more)
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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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- 1
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- 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 FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 16mm X 15mm (5/8" x 5/8"). MILD SULFURIC ACID BATH APPLIED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 30mm X 9mm (1-3/16" x 3/8"). MILD SULFURIC ACID BATH APPLIED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 9mm X 6mm (3/8" x 1/4"). MILD SULFURIC ACID BATH APPLIED. -
C0102 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, FOUND ALREADY SPLIT. SPECIMEN 19mm. X 13mm (3/4" x 1/2"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 10mm X 9mm (3/8" x 3/8"). -
About a week or two ago I received a phone call from a friend of mine, Marty H., I have known him for more than 30 years and met him through my fossil mentor, Walter. I have collected with Marty many times at Pitt 11 and Pit 4. The reason for his call was to tell me that he had about 10 bags of open concretions that he wanted to give to me. He knows that I like to take various fossils to the ESCONI Braceville Shaft Mine trip that is held 2 times a year. I was not able to make the trip in May due to vacation, hopefully I will make the one later in the year. The bags that he gave me contained fossils from Pit 11, Pit 4, Dresden Lake and Lintin, Indiana. These fossils were all collected in the early 1980’s. I went through the bags when I got home from work today to see what was inside. 95% of the fossils will end up at the ESCONI trip, but I did keep a couple large pieces of bark. The fossils include a bunch of Essexella asherae jellyfish, Pecopteris, Neuropteris, Annularia, worms, bark, coprolite, etc. Here are some of the hundreds of fossil pieces that he gave me. Thanks again Marty.
- 7 replies
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- 4
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- dresden lakes
- linton indiana
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Mazon Creek Newcomer Review and Concretion Questions
JackInThePulpit posted a topic in Fossil Hunting Trips
I live in Chicago and for a while I’ve been wanting to try Fossil Hunting in Mazon Creek. My first trip three weekends ago I tried to have myself prepared but still wasn’t quite sure what I was getting myself into. I hiked to the tipple area, there I had a really hard time telling rocks from concretions because especially in that area most of the rocks are covered in an orange rust. I collected 5 gallons of what I later realized were almost exclusively rocks. The trip was still worth it though because there were lots of these fast little lizards running around on top of the exposed coal, and I had never seen wild lizards in Illinois before. Since then, I’ve done a lot more research and went on two more trips. I mostly collected along the northern ridge of the southern section of Monster Lake. I spend nearly the entire time crawling on my hands and knees through thick undergrowth up and down ridges. I’m sort of used to off trail hiking like that so I wasn’t very bothered by the vegetation. For a beginner I think I’ve had good success, but I still have some questions about identifying the right kinds of concretions. In an ESCONI youtube video on Mazon Creek they mention that siderite plates and diagonal concretions are no good and should be left behind. Does anyone have any tips on how to better differentiate these? For the plates, unless it’s obviously thin I can’t quite tell. I’ve included pictures of examples of what I couldn’t quite tell were plates or not. And for the diagonals I’m honestly not sure at all. Other than that I’ve so far really enjoyed fossil collecting, and I intend to continue through the summer until I am either consumed by the undergrowth, or my limited freezer space creates a massive backlog. I’m lucky in that I haven’t gotten a single tick yet (and I check thoroughly). I treat all of my hiking clothing and equipment with permethrin and I wear both the Picaridin lotion and Deet spray. The bugs run from me. Here are some concretions that I wasn't sure if they were siderite plates or not. Here are some I was more certain about -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 74mm X 13mm (2-15/16" X 1/2").-
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- 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 FREEZE/THAW & LIGHT HAMMER BLOW. SPECIMEN 65mm X 15mm (2-9/16" X 5/8"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 65mm X 25mm (2-9/16" x 1").-
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- 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 FREEZE/THAW METHOD. SPECIMEN 72mm X 19mm (2-7/8" x 3/4"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD & LIGHT HAMMER TAP. SPECIMEN 75mm X 22mm (2-15/16" x 7/8"). FRAGMENT FROM MARGIN OF CONCAVE HALF GLUED BACK INTO POSITION. -
Hi! I’ve been working on opening some nodules from Mazon Creek, IL, and opened this one about an hour ago. I’ve been looking at pictures online of jellyfish and have seen some loosely defined like this nodule, though this is probably just a regular old concretion. What do you think? Thanks! P.S. In hindsight I realize that wetting this nodule down wasn’t particularly helpful lol
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION , SPLIT BY HAMMER BLOW. SPECIMEN 32mm x 10mm (1-1/4" X 3/8"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY LIGHT HAMMER TAP. SPECIMEN 70mm X 22mm (2-3/4" X 7/8"). CONCAVE HALF BROKEN - GLUED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 65mm X 14mm (2-9/16" X 9/16").
