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Showing results for tags 'pennsylvanian'.
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD. SPECIMEN 62mm X 27mm (2-7/16" x 1-1/16"). -
3-1-22 Oglesby, Illinois Pennsylvanian Roadcut Collecting
Nimravis posted a topic in Fossil Hunting Trips
On Sunday I took trip to a roadcut that I like to collect. This roadcut, about 75 minutes from my house exposes the Pennsylvanian LaSalle Member of the Bond Formation. I have been to this site numerous times, as have @deutscheben and @connorp. If you search using the word “Oglesby”, you will find numerous posts with some great stuff that comes out of this roadcut. Well back to the post. On Sunday the site still had too much snow cover to try and collect at this location, so I left. So today I had a choice, go to the Mazon Creek area since it was the official opening day for the collecting season or head out to Oglesby. I choose Oglesby and I was the only person there. I spent a few hour searching, cracking and collecting at the site. Found the usual suspects in brachiopods, collected some, left most for others. Found a slab of rock that had fallen off of the head wall a few years ago, but this thing I decided to break it up. I found numerous, what I believe are shark teeth, some I know for sure, others not too positive. Unfortunately, nothing was complete. If I would have broke it up a couple years ago, the biggest one might have been intact and complete, but who knows. Here are a couple pics the the site. Here are some pictures of fossils, as stated previously, I did not collect all of these.
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- brachiopods
- oglesby
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Calling on the usual suspects, @stats @deutscheben @bigred97 @Nimravis @fiddlehead @flipper559 @connorp @RCFossils , to either confirm or refute my meager guesses at ID on these ferns. Thank you all in advance -- I truly appreciate your help. And of course, I'll consider what any others think as well. Thank you.
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Tomorrow (March 1st) is opening day for fossil hunting at Mazonia-Braidwood State Fish and Wildlife Area, also known as Pit 11 to Mazon Creek collectors. The weather has been on an excellent trend running up to now, with many days over the next week predicted to have highs in the 50s and even 60s, although a few days do have rain predicted as well (and things may already be muddy as the soil thaws too). Who is planning on heading out this week to kick off the season? I will be taking tomorrow off work to be there on opening day. I missed out on the 2021 season entirely, and actually haven't been to the park since March of 2020- my last trip there was one of my last activities before COVID hit. With any luck I will be able to make at least a couple of trips this year. With the warmer weather, be sure to watch out for ticks, and with potentially muddy conditions drive carefully- I have seen vehicles get stuck in the past. Finally, it's always a good idea to have your copy of the fossil collecting permit, either picked up outside the park office or printed from online: https://www2.illinois.gov/dnr/Parks/Activity/Documents/MZB_FossilPermit.pdf Best of luck to everyone and I hope to see some of you out there in the park! Please feel free to share your finds and reports in this thread as well.
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- carboniferous
- illinois
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. CONVEX HALF BROKEN IN TWO & LEFT AND LEFT SEPARATED TO SHOW DEPTH OF SPCIMEN. SPECIMEN 30mm X 20mm X 15mm (1-3/16" x 13/16" x 5/8"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 100mm X 25mm (3-15/16" x 1"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD & HAMMER BLOW. SPECIMEN 55mm X 10mm (2-3/16" x 3/8"). BOTH HALVES BROKEN & GLUED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 54mm X 11mm. (2-1/8" x 7/16").-
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- francis creek shale
- mazon creek
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD. SPECIMEN 40mm X 25mm. (1-9/16" x 1")-
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- francis creek shale
- mazon creek
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Hello all. Quite a time back I found this shiny black thing in a piece of Brush Creek limestone. I had tentatively identified it as a trilobite free cheek part. However, a trip to the museum has the invertebrate paleontology department telling me that it's not for two reasons. While similar looking as a free cheek, the top portion doesn't match It's way too big to be a trilobite from this time period. I do agree with both assessments. It's twice the size of a typical Kasimovian (Late Pennsylvanian) trilobite from here. So, any fish part or tooth experts here? Perhaps this matches something that someone has seen. The connection at the junction where it turns into a point is interesting to me. Much more detail:
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H0020 Macroneuropteris scheuchzeri terminal pinnules
Mark Kmiecik posted a gallery image in Member Collections
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 40mm x 20mm (1-11/16" x 7/8"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD. SPECIMEN 65mm X 20mm (1-9/16" x 13/16"). -
From the album: Mark's Mazon Creek Fossils
CONVEX HALF SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD, CONCAVE HALF CRUMBLED BEYOND REPAIR. SPECIMEN 64mm X 24mm (2-1/2" x 15/16"). -
E0067 Macroneuropteris scheuchzeri, 2 basal pinnules
Mark Kmiecik posted a gallery image in Member Collections
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD. SPECIMEN 29mm X 20mm(1-1/8" x 13/16"). CONCAVE HALF GLUED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW, PARTIALLY SHATTERED. SPECIMEN APPROXIMATELY 50mm (2") IN DIAMETER. DISTINGUISHABLE FRAGMENTS GLUED BACK TO ORIGINAL POSITION. EXTENSIVE ACETIC ACID BATH & DENTAL PICK PREP.-
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- francis creek shale
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I'm stumped on this one. Unfortunately it is not very well defined, but it seems like something interesting... I haven't found anything similar before. Any thoughts are appreciated. @stats @deutscheben @bigred97 @Nimravis @Mark Kmiecik @fiddlehead @flipper559
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- carboniferous
- flora
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 35mm X 30mm (1-3/8" x 1-3/16"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, FOUND AS IS. SPECIMEN 82mm X 33mm (3-3/16" x 1-5/16"), TAPERING TO 30mm (1-3/16"). -
B0013 Sublepidophloios protuberans + Lepidostrobophyllum sp.
Mark Kmiecik posted a gallery image in Member Collections
From the album: Mark's Mazon Creek Fossils
THREE PARTS, SIDERITE CONCRETION. TWO SPECIMENS IN DIFFERENT LAYERS. SPLIT BY HAMMER BLOW. CONVEX HALF BROKEN AND GLUED TOGETHER. SPECIMENS 65mm x 10mm (2-9/16" x 3/8") & 5mm X 3mm (3/16" x 1/8"). ALBUMEN APPLIED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES OF SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPLIT FACE APPROX. 45mm x 45mm (1-3/4" x 1-3/4"). ACETIC ACID BATH. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPLIT FACE 55mm x 47mm (2-3/16" x 1-7/8"). LIGHT ACETIC ACID BATH. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY LIGHT HAMMER TAP. SPECIMEN 88mm X 28mm (3-1/2" x 1-1/8"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 80mm X 25mm (3-1/8" x 1"). OVER A PERIOD OF ROUGHLY 15 YEARS THE CONVEX HALF CRACKED AND PART OF THE SPECIMEN'S SURFACE DETACHED. GLUED BACK INTO POSITION - BADLY. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 101mm X 30mm (4" x 1-3/16"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 80mm X 32mm (3-1/8" x 1-1/4"). CONVEX HALF PARTIALLY DISINTEGRATED DUE TO UNDERLYING LAYER OF PYRITE. SALVAGEABLE PIECES GLUED BACK INTO POSITION.
