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Showing results for tags 'archimedes'.
Found 13 results
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Prepping an Archimedes bryozoan with needles. Lots of work to go.
Raistlin posted a topic in Fossil Preparation
So there was some talk about my recent needle preps and this Archimedes is on the same stone as the broken pygidium. The first photo is where it started. The others are where I currently am with it. I'm prepping at 30X zoom with sharpened sewing needles and hypodermic needles. It is a long process. But I can get some fine detail in the prep. I have 7 needles. Sharpened sewing needles. 1 wedge shape 1 four sided 2 cone shape Hypodermic 18 gauge 22 gauge 32 gauge 2022- 9 replies
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Tammy and I made our first post-pandemic roadtrip and we went to Chicago to see family. Decided to drive as I was not yet comfortable with airports and airplanes. I had hoped to visit a site in southern Illinois where blastoids used to be plentiful and easy to find. Sadly, that site was mistreated and is no longer available. Members here on the forum suggested several alternatives which should produce the blastoids that I longed to hunt for. We found that the large (and well known) roadcut just north of Sulphur, Indiana was along the route (kind of) on our return trip and so it was added to t
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Archimedes sp. located at the center of the plate.
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Archimedes sp. located at the center of the plate.
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Firstly, a big THANK YOU to @Jeffrey P for hanging out with me for the day! What a knowledgeable, generous, and all around swell guy! If you ever get the opportunity to hunt with Jeff, I highly encourage you to. Jeff and I met at around 8:30 am, and after a quick transfer of his gear to my truck, we were off. We first drove about 45 minutes south to the small town of Wax, to hunt the Upper Mississippian. Specifically to look for blastoids and crinoid calyxes that were known to be found in the area. As it happens, luck was with us! Unfortunately, I didn't take the fiel
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From the album: Bryozoa
5cm. long Bangor Limestone Formation Mississippian Early Carboniferous From Northern Alabama -
Big Hill (KY) geology and fossil expedition 11-2-2019
Darrell Barnes posted a topic in Fossil Hunting Trips
Big Hill (KY) geology and fossil expedition 11-2-2019 video link Kentucky Academy of Science Saturday afternoon activity: Quartz infilling identified by Dr. Frank Ettensohn, expedition host Stylolites identified by Dr. Frank Ettensohn Archimedes bryozoan identified by Mr. Daniel J. Phelps Mr. Phelps describes crinoid, brachiopod (Composita) and modern isopods=pill bugs or rolly pollies Crinoid stem columnals described by Darrell Barnes in rock detritus collection site (Mark Montgomery interacts) Dr. Frank Ettensohn identifies the spine of a crinoid by Dar-
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From the album: MY FOSSIL Collection - Dpaul7
Bryzoan - Archimedes screw wrapped in Fronds Chesterian Zone of the Bangor Limestone Formation in northern Alabama Mississippian Period c 325,000,000 years ago Archimedes is a genus of bryozoans belonging to the family Fenestellidae. The first use of the term "Archimedes" in relation to this genus was in 1838. This genus of bryozoans is named Archimedes because of its corkscrew shape, in analogy to the Archimedes' screw, a type of water pump which inspired modern ship propellers. These forms are pretty common as fossils but they have been extinct since the Permian. Archimedes i -
From the album: MY FOSSIL Collection - Dpaul7
Large Archimedes Bryzoan in matrix Bangor Limestone Formation, North Alabama, USA Mississippian Period c 325,000,000 years ago Archimedes is a genus of bryozoans belonging to the family Fenestellidae. The first use of the term "Archimedes" in relation to this genus was in 1838. This genus of bryozoans is named Archimedes because of its corkscrew shape, in analogy to the Archimedes' screw, a type of water pump which inspired modern ship propellers. These forms are pretty common as fossils but they have been extinct since the Permian. Archimedes is a genus of fenestrate bryozoans -
Ever since I was youngster I've been fascinated with paleontology. I always thought thought the act of going out and hunting for fossils was far fetched... That I would spend hours and hours of searching and come back with nothing. Recently however I did some research on the topic and discovered that oceanic fossils are actually quit abundant and easy to find. After stumbling upon this new information I quickly purchased a rock pick and cold tempered chisel and gathered all the equipment I would need for my first fossil hunt - something I'd dreamed of for as long as I can remember. Las
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I'd heard this location had blastoids, which I've never seen before, so last Friday me and a friend headed down there. We arrived around 930 or so and were immediately stuck by the steepness of the cut "we have to go up this?". We got up near the top where the really productive layer is and immediately started finding blastoids, archimedes, and small horn corals. Most blastoids were in the 1/2" range, I found one archimedes that is around 6" in a slab. Buddy found one blastoid that is probably over 1". The horn corals are generally small. Lots of crinoid bits and pieces also. We took a
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What a interesting start to May, 45 and rainy in Alabama!!! In fact rainy is an understatement, it rained hard for about 12 hours straight. Decided I was going stir crazy in the house and would risk being wet and cold and went out fossil hunting. It was well worth it, found lots of great things but--I feel strange saying this--bryozoans ruled the day (Archimedes specifically). For those that have hunted these interesting things, you know that these things are usually not very long unless in matrix. To be honest these were no longer intact either, but they were exposed in the shale from the hea
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From the Fort Payne Chert (Mississippian) of northern Alabama, here's what I think to be an Archimedes bryozoan in cross section. Scale is in centimeters. Am I correct? Can you suggest a more specific identification? I was unfortunately unable to collect this one, as it was in a fairly large rock, but I know where to find it next time. Thanks in advance for your consideration. EDIT: I was wrong, this is from the Monteagle Limestone (also Mississippian).
