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Found 409 results

  1. Devonian trilobites of Gondwana studied with newer mathematical models to determine evolutionary connections https://phys.org/news/2019-01-reconstruction-trilobite-ancestral-range-southern.amp
  2. Hey everyone, As some may already know I’m in Austin Texas until Sunday. Leading up to the trip I couldn’t pinpoint any reliable Texas locations due to water level reports and people warning about water levels at some localities. Some of the places I was interested in were on rivers. I could have wasted a lot of time if I showed up with high water levels. I’m only here once to I needed to chose something with less of a gamble. So I figured I would just scratch my trilobite itch up in Oklahoma!! We arrived in Austin on Tuesday and I had arranged a hunt with Leon for Wednesday. This way I would be back to Austin Wednesday night. Turns out Leon and Alan Lang are best friends of over 30 years! Leon actually called Alan to ask who I was and I passed the test haha. Small tangent but needs to be said......Leon, like Alan Lang interview people before letting them in. Sadly the intentions of some people are not pure. Also some people gripe and groan about prices as if complaining will be enough to get a discount. Or people get too pushy and try to dicker price making the whole thing awkward...It doesn’t work like that. Yes Leon’s and Lang’s are pay to dig. Yes we all want free fossils and for the most part free fossils are available all over the country/world. They are nice to even let us in. People don’t really appreciate or I should really say “understand” the investment it takes to own these places. They don’t have to let us in at all. Think of Caleb’s quarry (Rochester shale) and the quarry exposing the Trenton group with exquisite trilobites. Good luck even getting access to those places. I hear the owners of Caleb’s quarry are very nice people but it’s private. Privately owned and privately dug. There are places like this all over the world....privately owned and privately dug. I’ve seen a lot of stuff on the forum kinda knocking the pay to dig quarries and I think it’s a matter of perspective and possibly jealousy...heck I’m legit extremely jealous!!! If I told you how much money these guys poured into these places (especially Lang x10) you would ask...”why aren’t they charging more!” After one conversation in person you would probably change your tone and realize these guys are just like us....fossil crazy and actually quite nice. Ok back on topic I met Leon in Coleman, Oaklahoma at 8am yesterday (Wednesday) and I immediately recognized him. He’s actually on Alan Lang’s website prepping a multi plate. I didn’t realize it was him from the website! We chatted for a moment and off we went! You can’t stumble on this place...and Leon has many stories from 20-30 years ago about people sneaking in and selling fossils before the land was sold to Leon. One story about a particular poacher brought some laughs. Leon’s a funny dude. After the gate we had to literally drive through cow pastures. We saw deer, coyotes (yea coyotes!), cows and a bull! Just driving through the fields ha. The black one further away is a bull.
  3. Cole Hill 1-8-18

    I decided to try my luck at Cole Hill today after seeing @Calico Jack and @Al Tahan's recent luck. With last night's rain, the roads were a bit slick on the ride out, but not terrible. I arrived around 10 and quickly saw where they had been working. They both said they had only been there for a short time but there sure was fresh rock thrown everywhere. Somebody is fibbing! I decided to work a spot close to where I found my last couple, mostly complete Dipleuras. I wish I had something exciting to report but all I found was a lot of the usual suspects. Cephalons, pygidiums, Bembexia, various brachs, bivalves, and nautiloids. None of them were in great condition, but that being said I still had a good time. The weather was pretty nice and I stayed till 1:30. It was nice getting out of the house. Before I left, I heard a car pull in to the side of the road. A lady got out and told me that I needed to get permission to hunt there as her family owned the property. I asked her if she was the daughter of the lady who lives down the road and she said yes. So I explained that I had gotten permission from her Mother back in 2003 and have been coming there ever since. She said her mom didn't recognize the car. She was very polite about everything and I talked to her for a bit and also explained that I have talked with the mother from time to time and some other family members who hunt the property in the fall. Then she went on her way. I stayed just a little while longer as my back was starting to hurt. Better luck with the trilos next time.
  4. What are these?

    I was just wondering what the species for the trilobites are but I’m not sure what the 3rd thing is as it looks like an ammonoid or nautiloids from most angles but it doesn’t have an aphycyus it has an operculum so is it a devils tonail thanks
  5. Trilobite from Udig, Utah

    Hi everyone. I'm new to preparing and don't have the money to get the proper equipment. However, I do have the Harbor freight Air eraser I was recommended by several b people on here. Anyway, I have one of those tiny to segment Trilobite who name I forget for the minute. The matrix he was in broke up, so I've mounted it to another piece of same udig shale before I start work on the Trilobite so I don't have it break n in half. There's a small Gap in the matrix because it's not a perfect fit, but Very close. The glue is holding well and clear , but what can I use as filler for the tiny Gap? Can I mix clear glue with some sanded matrix mixed in to make a filler? Thanks everyone
  6. Dzik_Phong_2016_Stratigraphy.pdf Dating of Cambrian–Ordovician boundary strata in northernmost Vietnam and methodological aspects of evolutionary biostratigraphic inference Jerzy Dzik and Nguyen Duc Phong Stratigraphy, vol. 13, no. 2, text-figures 1–5, pages 83–93, 2016 less than 2 Mb
  7. Holy Rollers

    I sneaked one more trip under the wire for 2018. Last minute finds include 5 whole and 2 half Flexicalamene trilobites, Ordovician, St. Leon, Indiana. This popular site was hit hard recently as evidenced by the stampede of foot and knee pad prints. Last night’s rain wasn’t enough to really shuffle the deck, but a couple diligent hours allowed me to scratch out ample paydirt. No complaints.
  8. Ohio Trilobites

    I was given these two trilobites from my uncle in Michigan, and he found them locally in Ohio about 11 years ago. I was thinking they are flexicalymene but I am not certain since I am new to identification. Thanks in advance! The smaller one is almost exactly 0.5" long (back of matrix shown), the wider one almost 1.5".
  9. I recently received a scotoharpes trilobite from my grandmother for christmas, and was told by a kind member of this forum to share it with everyone! I'm fairly new to fossil collecting- I acquired my first fossil when I was 7 years old, a piece of horned coral, and built up a collection over the years, but the direction I want to take is trilobites! My favorites being the harpetids. Please share your harpes specimens or any other trilobite you are proud of!
  10. No better way to spend a sunny, 52 degree Georgia day than fossil collecting with my son. This is the first time in about 22 years that we have collected together. We went down to the Conasauga River in Murray County to collect Cambrian trilobites. Unfortunately the River was running high and fast and it did not make Collecting easy. I had to do some fancy climbing to get to the area that I wanted to collect. Using tree limbs to hold onto, I was able to navigate the slippery slope. I only took two pictures of partial trilobites that I found, I decided not to take any more pictures because I was worried about dropping my phone in the river. Here are some of my other finds- all Aphelaspis brachyphasis, with the exception of this first piece, I believe that this is a partial Eugonocare , I have only found one other partial one in the Times I have visited this site.
  11. I had a discussion elsewhere on the FF about Gabriceraurus herrmanni. The history of this trilobite is interesting. Walter(1924) described Ceraurus herrmanni from the Platteville limestone near the mouth of Catfish Creek, Dubuque Iowa. At this locality the Decorah is exposed and it is probably the unit the trilobite came from. The illustrated specimen only has a thorax and pygidium. Walter discusses how his species is different from Ceraurus dentatus and states that “The specimen is now in the Museum of the Collector, Mr. Richard Herrmann.” What ever happened to the collection of Mr. Herrmann is unknown and the specimen has not shown up in any museum collection and is assumed to be lost. Later Demott(1987) describes Gabriceraurus dentatus from the same unit the Decorah. In his synonymy he includes Ceraurus herrmanni (he spells “herrmanni” with only one “r”). Demott remarks that Walter(1927) thought C. herrmanni to be different from C. dentatus. However, the specimen is presumed to be lost and could not be compared to his material So, Demott concluded the specimens he has are the same as Gabriceraurus dentatus. Since Demott’s paper, more specimens have been collected and made their way into private and museum collections. Specimens of both G. dentatus and G. herrmanni have been examined and are determined to be different. The differences are subtle but different. Attached are two specimens of G. herrmanni I prepared that were collected by Al Scheer. One specimen is crushed flat and the other is in a limestone preserving it 3 dimensionally. The differences are striking and are a good example of how compaction of a trilobite can distort the features of a specimen. The flatten specimen looks more like a G. dentatus, while the 3 dimensional specimen is what G. herrmanni is supposed to look like.
  12. bathyurus and Eomonorachus

    ontariomusbathyurtrilobitesbathyureomonorbiofacies00ludv.pdf about 2.1Mb Rolf Ludvigsen The Trilobites Bathyurus and Eomonorachus from the Middle Ordovician of Oklahoma and their biofacies significance Royal Ontario Museum Life Sciences Contributions 114 (1978) As far as I could ascertain,not posted previously.
  13. Guidebook to the Penn Dixie Site, New York

    Bastedo, J.C., 2006. The Penn Dixie Site - A Classic And Unique Paleontological & Outdoor Education Center. Guidebook for Field Trips, New York State Geological Association 78th Annual Meeting October 6-8, 2006, Field trip B4 (78), p.396. The above guidebook to the Penn Dixie Site is found in the 2006 Guidebook for the New York Geological Association at: http://www.nysga-online.net/wp-content/uploads/2018/09/2006_bookmarked.pdf http://www.nysga-online.net/guidebooks/1925-1955/ http://www.nysga-online.net/guidebooks/ A revised version of this guidebook is: Bastedo, J.C., 2013. The Penn Dixie Paleontological and Outdoor Education Center: An Internationally Renown Multidisciplinary Educational, Cultural, Recreational and Tourist Attraction. Guidebook for Field Trips, New York State Geological Association 85th Annual Meeting 20 – 22 September 2013, Field trip. pp. 54-67. http://www.nysga-online.net/wp-content/uploads/2018/07/2013.pdf http://www.nysga-online.net/guidebooks/1925-1955/ http://www.nysga-online.net/guidebooks/ Yours, Paul H.
  14. UK Trilobites

    Does anyone know where I can find Trilobites in the UK (preferably south east) and how best to collect them?
  15. Triarthrus eatoni

    Found associated with T. rougensis, T. spinosus, brachiopods, cephalopods, and graptolites. Included in multi plate alongside eight other complete or near complete T. eatoni.
  16. Triarthrus eatoni

    Included in multi plate alongside eight other complete or near complete T. eatoni. Found in association with T. rougensis, T. spinosus, Brachiopods, Cephalopods, and Graptolites. The Cephalon is slightly disarticulated, likely from molting.
  17. Triarthrus eatoni

    Found associated with T. rougensis, T. spinosus, brachiopods, cephalopods, and graptolites. Included in multi plate alongside three other T. eatoni and one T. rougensis. Both eyes are preserved.
  18. Triarthrus rougensis

    Both genal spines are present. Right side of cephalon is slightly pyritized. Found associated with T. spinosus, T. eatoni, cephalopods, and graptolites.
  19. Triarthrus spinosus

    Ventrally preserved. Both genal spines and one thoracic spine are present. Hyostome slightly visible. Found associated with T. eatoni, T. rougensis, cephalopods and graptolites.
  20. Triarthrus spinosus

    Found associated with T. eatoni, T. rougensis, cephalopods, and graptolites. Impression of right genal spine is present. Right side of cephalon is slightly pyritized.
  21. I would like to add in my collection some trilobites. Natural specimens, not fakes or reconstructed material! I prefer specimens on matrix. In return I offer fossils from central Europe, like ammonites, crinoids, big bivalves, gastropods….
  22. with trilobites

    Hi, In some places, when I found trilobites, I also find these things that are in the photos that I dont know what they are Can anyone tell me what they are? thank you in advance Pedro
  23. Good spots for finding fossils in Kentucky

    Okay so I am a noob basically in fossil hunting. I am more of a living animal guy but minerals and especially fossils are a side passion that I would absolutely love to get more into. I have my own mediocre collection. My proudest piece is a trilobite which I bought for $5. I can’t really afford to buy all my fossils plus finding them is always fun. I have a decent collection of corals. Anyways now that I got the background out of the way. I need advice on where to look in Ky. Mainly the Jackson Purchase area as that’s where I’m located and currently limited to. I find most of my corals at the beach at Kentucky Dam. So where else should I lool? Creeks, cornfields, etc.? And what do I look for? I have a basic understanding but not really at the same time. And lastly I would love to find arthropods. That is my passion and fossilized arthropods are my favorite. So like trilobites, where can I find those? Anyone have any locations? Any help is greatly appreciated
  24. Hello everyone! I found this specimen also in a creek on a walk through a local park north of Pittsburgh. Thinking it may be a burrow fossil, but if it is, was wondering if there is an actual scientific name for it, so I know how to file it away accordingly under the proper name. Found the term Cruziana online, and wondering if this would qualify. Does anyone have any opinions? Or, if it is a burrow, is there any way of narrowing down what might have made it i.e. trilobites/arthropods etc? Details: 1) Found in isolation/there were no other similar pieces nearby. 2) Measures about 8-12 inches long. Burrow notches are about the width of a penny. 3) Again, found in Carboniferous territory in Western Pennsylvania found in a creek. Thanks everyone!
  25. The Confusion Range and the House Range sit in Western Utah. The House Range is farther east closer to Delta, Utah than the Confusion Range. Parts of the Confusion Range are basically on the Utah-Nevada border. Both mountain ranges though have spectacular fossils. The House Range is basically all unfaulted Cambrian age layers and fossils pop up in several of the rock layers there. The Confusion Range, though, is broken up by many faults and everything from the Cambrian to the Triassic is present. Here's a short stratigraphy section marked with the layers we visited. We went to three different sites. A Cambrian site next to U-Dig fossils to sample the Cambrian explosion, and Ordivician site at Fossil Mountain (what better place to find fossils then a mountain named "fossil" mountain) to sample the Great Ordivician Biodiversification Event, and finally a time where 90% of all marine was wiped out, the Permian Period and the Gerster Limestone.