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Showing results for tags 'ordovician'.
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Today I joined a local club on a trip to a dolomite quarry (Ordovician, Galena Group) in northern Illinois. This was the first trip of the year as the rest have been cancelled. The quarry was quite massive, so social distancing was not a problem. We hunted in rock piles in the middle of the quarry (very far from the high walls) that were scheduled for crushing. It was quite a beautiful place. Besides some hammering, all I heard were large birds that were circling above. The fossils found here are pretty standard for the Ordovician rocks in the area. The Galena Group here seems to be a lot more dolomized than further north in say Minnesota, so most of what is found are molds. Fisherites were somewhat common. They were quite massive so I only took home a small chunk of one I broke up. The most abundant fossils were these gastropods, I think Maclurites. They were everywhere but rarely came out complete. Hormotoma gastropods were also present. I believe this is a cranidia of the trilobite Thaleops.
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Going through old stuff and found this. Measures 1cm.Platteville formation(?), WI. Any ideas?
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- ordovician
- trilobite
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A huge Hungaiidae trilobite from Hunan Fenxiang Formation, Lower Ordovician. Part of gut is preserved due to infilled sediment.
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Well im really new and just now taking interest in fossiles. Found this in eastern ky under a red line of rock(Side note was that a iron rich comet?). Looks like a coral, worm,or snake to me any info would be great. Sorry if i did this all wrong
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- coelent
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Hello, friends. Can anyone give me a helping hand identifying this, please? Not the Asaphellus trilobite, but the other object. This is Moroccan Fezouata, so Early Ordovician. Notice the thoracic segments curve the opposite way to most trilobites. It is convex on both sides, though seemingly a bit flattened. It has a 'flange' on one side of the anterior and presumably had one on the other side. Bit of a trilo? Aglaspid? Xiphosurid? Some sort of echinoderm? Any guesses most welcome. Thank you very much. Scale here in inches : Removed a little more matrix. Scale here in cm. This shows the trilobite better! Thanks again. Cheers, Adam and Tidgy.
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Hey I am currently going through and reorganizing my collection when I came across these that have no Id information, I was wondering if I could get some help with these fossils. The first was sent to me by a friend in Montreal, QC, and was collected on the south shore. Other than that, no information came with it. I think its an endocast from a snail shell. The second and third I collected personally, and they are from the Hull formation in Ottawa, ON. The second is a brachiopod, but I don't know the species. Finally, the third is also from the same site, and is about 2 cm long. When I first recorded it I labeled it as a split snail shell, but I'm questioning that now. Thanks in advance for your help everyone.
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My wife and I went on a 7500+ mile ramble to break out of our COVID doldrums. Due to the virus we had to change up many of our original plans... which conversely added a number of additional fossil hunting locals as they allowed us to mostly avoid our fellow humans and maintain social distancing by many many miles. As part of our trip preparations my wife sewed us a number of masks, including a whole series of fossil hunting masks for me. Originally we were supposed to stay in Chicago, but we elected to avoid staying in the city, so we only got to do a drive by We started the trip with a bonus dig, meeting up with fellow forum member @minnbuckeye for a guided Ordovician hunt in Fennimore, Wisconsin (THANKS MIKE!) Unfortunately I neglected to take pics of the site so I will only be able to share a farm pic we passed on the way. Mike was a gracious host who kicked off the visit with a gift of several fossil samples from his home turf As with all of the fossils from this trip, all finds are as they arrived back home, no prep. Some of our finds from Fennimore:
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- big cedar ridge
- bois darc
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I recently collected these three fossils on a trip to the Salona Formation in Pennsylvania. I was able to identify everything I found except these three. Any help would be greatly appreciated. #1 - initial thoughts were Cryptolithus genal spine but it seems very large for Cryptolithus and I did not immediately see the pits that are normally associated with Cryptolithus #2- perhaps some type of sea plant? #3- no idea. It reminds me a little bit of Tentaculites. It measures about 1 cm in length.
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Hello! I recently decide to split a fossil that seemed to have the edge of a shell poking out. To my surprise, it split open to reveal something I have never seen before in all my years hunting in Toronto. I thought perhaps it might have been the head of an unusual trilobite, but I am not convinced for sure. It was found on the riverside deposits of Etobicoke creek in Toronto, Canada, which is part of the Georgian Bay formation. Let me know what you guys think @Malcolmt @Monica @JUAN EMMANUEL:
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Some rare finds (from Georgian bay formation - Toronto)
Emthegem posted a topic in Fossil Hunting Trips
Oye I managed to get my hands on some very rare stuff (at least in terms of my local area) while hunting this last month in the Georgian Bay Formation in Toronto, Canada. Some of these fossils have been some of the nicest I've ever found, and will probably look even better with a little cleaning. Let's start things off with the usual nautiloids with a side of bivalves: Treptoceras crebriseptum I love these plates so much - they are currently some of my favourite fossils in my whole collection at the moment Treptoceras crebriseptum for the first three, the one on the far right might be a different species as it has a unique spiralling pattern.... Some MASSIVE nautiloid chambers, the biggest I've ever seen!!! A bunch of Rafinesquina brachiopods (I think). These are usually somewhat rare but I've found a lot recently so that is pretty cool A couple Ambonychia and what I believe are Pholadomorpha pholadiformis. A close up one the Pholadomorpha pholadiformis in the middle - one of the most exceptionally well preserved specimen I have ever seen!!!!
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I had the opportunity to spend an afternoon hunting fossils along Highway AA in Northern Kentucky. If one wants to be overwhelmed with road cuts, this is the place to visit! Back to my ID request. I am not sure if it fell down from the overlying Fairview Formation or whether this was Kope. Normally I am not greatly interested in crinoid stems but this one is quite different from the ones I normally find and researching crinoids from this area gave me no answer.
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- crinoid stem
- kope or fairview
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Found in a dam/quarry on the road between Gunningbland and Forbes in central western NSW. The pictured specimen is the counterpart. For reference - CAMPBELL, K. S. W., DURHAM, G. J. 1970. A new trinucleid trilobite from the Upper Ordovician of New South Wales. Palaeontology, 13, 4, 573–580. link WEBBY, B. 1974. Upper Ordovician trilobites from central New South Wales. Palaeontology, 17, 2, 203–252. link
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A little Ordovician collecting at South Gate Hill in St. Leon, Indiana
Nimravis posted a topic in Fossil Hunting Trips
Here is my trip report to South Gate Hill, also known as St.Leon, this is the town that the roadcut is located. This is a very large and pretty road cut that has exposures on both sides. You could have 75 people out here collecting and you would not feel crowded. The exposed formations at this location, starting from the top down are as follows: Lower Whitewater The entire Liberty The entire Waynesville Upper Arnheim As with the trip report that I made yesterday on the Garr Hill location in Brookville, Indiana, it will take me multiple posts to show this area, the fossils found while collecting, loose fossils that I took home as well as the Hash plates that I also brought home. After getting rain in the afternoon on Friday, at Garr Hill, I knew that I had to get an early start at this location, because the forecast was calling for rain at about 11 am. I was out of the hotel in Lawrenceburg, Indiana and about 20 minutes later I was at South Gate and started collecting around 6:30 am. I was the only person on site and around 10 am another car arrived and two collectors stayed on the opposite road cut for about 1 hour and left when the rain arrived. I spent all of my time, 4 1/2 hours, in the Liberty Shale, also called the Butter Shale. This is the location that, if patient and crawling on your hand and knees you can find trilobites. Also found with these rollers are my favorite brachiopod, Zygospira. I know that Tony @Peat Burns likes these little guys and has one as his avatar on the Forum. I like these brach's because they are so perfect and colorful, see pic below. I pick up everyone i find because on some occasions you may find a Flexicalymene right near it. Here are a few pictures of the area- Here are pictures of fossils that I saw in the field, many, but not all were collected. None of these will be identified, but I do my best in the portion that shows the loose fossils that I collected. I always have a problem with these ID’s, so if you see an issue and feel like correcting, please do so.
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A little Ordovician collecting at Garr Hill in Brookvile, Indiana
Nimravis posted a topic in Fossil Hunting Trips
On Thursday I checked the weather for Brookville and St. Leon, Indiana, Friday looked like a good day, since no rain was forecasted, but Saturday did not look as promising. Feeling the urge to go collecting, I left at 5 am and drove the 4 ½ hours (330 miles) to my first stop in Brookville. This site is located on Route 101 and is referred to as Garr Hill, it is represented by the following Ordovician formations: Waynesville, Liberty, White Water and Saluda. This road cut is about 70 feet tall and I like going up and down and across on the road cuts that I visit. This day there were portions that were super muddy and I would slip in these areas and the other portions were as dry as the Western desert and I would slip on these areas. Special attention needs to be taken and when traversing this site and any road cut site since you do not roll down. Here are some pictures of the road cut: If you have seen any of my other Trip Reports, I like to take a lot of pictures, I do not take them for me, I take them for the Forum members to see, especially the ones that may never have a chance to visit. I like to try to use the pictures to take other members on a virtual trip of the places I collect. With that said, it will take me multiple posts to show this area, the fossils found while collecting, the loose fossils that I took home as well as the Hash plates that I also brought home. Here are pictures of fossils that I saw in the field, many, but not all were collected. None of these will be identified, but I do my best in the portion that shows the loose fossils that I collected. I always have a problem with these ID’s, so if you see an issue and feel like correcting, please do so.
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The fossil was collected on the Deer River near Spring Valley, Minnesota. It is shaped like a trilobite, but it doesn't have any distinctive features, as the shell is mostly smooth. It somewhat resembles a shark tooth, but were no fish at this time. The width of the fossil is about 17 mm.
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For Father's Day Weekend my dad and I drove into Pennsylvania yesterday to collect Ordovician fossils at a location I read about with access to the Salona Formation. With rain in the forecast I was a little worried the trip would be a total wash. Instead, we experienced beating sun, and, having left our hats at home, we quickly began to overheat. My dad also found two snakes while overturning some large rocks. To say the least my dad was ready to leave after an hour. Luckily I was able to convince him that if he wanted to stop he should at least let me poke around for another 30 minutes. While I was poking around my dad decided that it would be safer for him to remove and examine new material than to work in the talus. We worked for another hour before calling it a day. When we got home I went to work washing off the many hash plates my dad exposed while removing new material. The plates were covered in a fine layer of dust so it was incredible to see what they fully held after washing them off. As I was washing one plate I had to stop myself in the middle. I could not believe my eyes. In the bottom corner of one plate there was a rather familiar shape that I was not expecting to see. I immediately knew what it had to be. In all of the literature I have seen no mention of starfish fossils being found at this site. Given that my dad was ready to leave after an hour I consider this find even more lucky. Although I did not have anything to go on, I believe that the starfish is Promopalaester bellulus. It certainly made for an exciting and memorable Father's Day Weekend! Here are some of our other exciting finds: Hash Plates with Bits of Cryptolithus Ventral Ceraurus Cephalon Pygidial Spine of Ceraurus Ventral Isotelus Thorax
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Found this in some creek gravel in Franklin, Tennessee. What species of coral is this (pretty sure it's a coral)?
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This fossil was from a creek bed in Franklin, Tennessee. I have no paleontology or geology background so the little information I can give was that the rock it was in was about the size of a small toaster, and I chiseled it out (it actually popped out from the vibration). Imgur Photos: The rock was a dark grey (I have attached a photo of a different rock from the same area). I also included a photo shining a very bright flashlight through the bottom. The more crystallized part is where it was attached to the corner of the rock. https://imgur.com/gallery/PuchJQA EDIT: DSLR PICTURES HERE https://imgur.com/a/cqrjaBU
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Late Ordovician mass extinction - volcanism and warming or cooling and glaciation?
Oxytropidoceras posted a topic in Fossil News
There is a series of open access papers about what caused the Late Ordovician mass extinction. They are: Bond, D.P. and Grasby, S.E., 2020. Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation. Geology. https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G47377.1/586486/Late-Ordovician-mass-extinction-caused-by Mitchell, C. E., and Melchin, M.J., 2020. COMMENT: Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation. Geology https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G47946C.1/587311/COMMENT-Late-Ordovician-mass-extinction-caused-by Bond, D.P. and Grasby, S.E., 2020. REPLY: Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation. Geology. https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G47984Y.1/587312/REPLY-Late-Ordovician-mass-extinction-caused-by Wang, G., Zhan, R. and Percival, I.G., 2019. The end-Ordovician mass extinction: A single-pulse event?. Earth-Science Reviews, 192, pp.15-33. https://www.sciencedirect.com/science/article/pii/S0012825218305099 https://www.researchgate.net/publication/331275476_The_end-Ordovician_mass_extinction_A_single-pulse_event https://www.researchgate.net/profile/Gx_Wang2 Yours, Paul H.-
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Hello all! Here are some of my my favourite scenery and fossil pictures from the last few weeks! Decided to hit up some new spots way up in the north end of Toronto along the Humber river - which yielded some very nice shells and crinoid segment (instead of the usual nautiloids). I'm in the midst of getting the weird nautiloid section so stay tuned: Lets kick things off with a couple very pretty shells and crinoids from the north end trip: the 7 shells from the left are Ambonychia, with the two black right shells being Pholadomorpha pholadiformis (I believe). Some crinoid segments on the far right These Ambonychia shells were definitely my favourites of the bunch^ When it comes to crinoids, this is about as good as it gets here in Toronto!!!! Almost nobody finds calyxes here, so this is about as good as it gets!
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Identification for a large variety of different fossils (Georgian Bay Formation)
Emthegem posted a topic in Fossil ID
Hello all! So I've been looking through my collection and noticed a bunch of fossils that I haven't yet identified yet. Some of them are quite peculiar, as I've never seen some of them until now. This'll be a long post with 12 different fossils in need of a name so brace yourselves hahah: All fossils found in Toronto creeks - Ordovician Era - Georgian Bay Formation 1. I thought this was the typical Treptoceras crebriseptum that I always find at my local creek, but when I cracked it out from the matrix I noticed it was perfectly smooth. Maybe its the living chamber of the nautiloid? 2. I honestly have NO clue what this is. Never seen anything like it. I thought it was nothing, but it seems to have such a defined symmetrical shape... ...
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From the album: Fossils of the Upper Ordovician Lorraine Group in New York
Cyrtolites ornatus? Upper Ordovician Lorraine Gr. Whetstone Gulf Fm. Jefferson County, New York Collected 11/11/19 -
From the album: Fossils of the Upper Ordovician Lorraine Group in New York
Orthocone cephalopod Upper Ordovician Lorraine Gr. Whetstone Gulf Fm. Jefferson County, New York Collected 11/11/19 -
From the album: Fossils of the Upper Ordovician Lorraine Group in New York
Calymene senaria? Upper Ordovician Lorraine Gr. Whetstone Gulf Fm. Jefferson County, New York Collected 11/11/19 -
From the album: Fossils of the Upper Ordovician Lorraine Group in New York
Unknown species Upper Ordovician Lorraine Gr. Whetstone Gulf Fm. Jefferson County, New York Collected 11/11/19
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