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Showing results for tags 'devonian'.
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This is from northern Maine. Devonian marine rocks in the Seboomook group of formations I believe. When I collected it my best guess was that it was a bryozoan, but somehow it didn't seem to fit right. I cleaned some of the dust off it recently for another look. The tube shapes and configuration of the molds have me thinking maybe syringopora ? It's all the same colony, just broken up.
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My fossil of the month
mikeymig posted a topic in Partners in Paleontology - Member Contributions to Science
I wanted to share what I think is exciting news about my NY crinoid that won fossil of the month here about a year ago. "Mike I am presently in Washington, DC visiting the Springer room at the Natural History Museum. The Springer room is where they keep all the crinoids; both type and non-types. You might be happy to know that your specimen is one of the reasons for the visit :-) We discussed what species of crinoid you collected and that prompted me to review the whole group. It has been almost 100 years since Goldring wrote the Devonian Crinoids of New York (1923) and I think we know a bit more now because of specimens like yours. Crinoids that are presently classified as Gennaeocrinus can probably be divided into at least three different genera and all Devonian species presently assigned to Aorocrinus need to be reviewed as well. I have photographed all examples of type specimens at the USNM. As is often the case, this has impacted on not only the taxonomy at the genera/ species level but has implications for both higher taxonomic levels as well as relationships with Silurian and Mississippian taxa." George C. McIntosh, Ph. D. Curator, Geology Rochester Museum & Science Center
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What is that impression? Coral?
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Meet my new Maurotarion axitiosum. It's not the finest example, but I am now only missing one of the main Haragan bugs, the Acanthopyge remains elusive. If anyone has one that they want to part with let me know. I probably can't afford it, but I'd settle for bits.
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Where are the best places to fossil hunt in New York?
emmag15 posted a topic in Fossil Hunting Trips
As the snow will start to clear soon, I’ve been looking into new places to hunt for fossils in New York! If you have any suggestions I would love to hear them and visit them! Thank you in advance! -
I have multiple finds just like this one. Walking on stone walls as a kid I would see these often. But never as heavily concentrated as this one. I have no idea about this other than my area is known for devonian period fossils. I've ordered a rock pick and hammer online so I can start cracking more rocks open
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I’m looking for a complete high quality Elrathia kingii still in matrix. If there are multiple on the same plate even better. I have a variety of fossils from the Chengjiang biota and several Devonian trilobites (Penn Dixie and Morocco) available for trade. PM if you’re interested! Thanks.
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Reconstruction of trilobite ancestral range in the southern hemisphere
Oxytropidoceras posted a topic in Fossil News
Reconstruction of trilobite ancestral range in the southern hemisphere January 10, 2019, FAPESP https://phys.org/news/2019-01-reconstruction-trilobite-ancestral-range-southern.html http://agencia.fapesp.br/reconstruction-of-trilobite-ancestral-range/29527/ Carbonaro, F.A., Langer, M.C., Nihei, S.S., de Souza Ferreira, G. and Ghilardi, R.P., 2018. Inferring ancestral range reconstruction based on trilobite records: a study-case on Metacryphaeus (Phacopida, Calmoniidae). Scientific reports, 8(1), p.15179. https://www.researchgate.net/publication/328251419_Inferring_ancestral_range_reconstruction_based_on_trilobite_records_a_study-case_on_Metacryphaeus_Phacopida_Calmoniidae https://www.nature.com/articles/s41598-018-33517-5 Bolivian Trilobites - At The Top Of The World American Museum of Natural History https://www.amnh.org/our-research/paleontology/paleontology-faq/trilobite-website/trilobite-localities/bolivian-trilobites-at-the-top-of-the-world Gallery of the Devonian Trilobites of Bolivia https://www.amnh.org/our-research/paleontology/paleontology-faq/trilobite-website/trilobite-localities/bolivian-trilobites-at-the-top-of-the-world/gallery-of-the-devonian-trilobites-of-bolivia Yours, Paul H.-
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It’s been quite some time since my last post here on the forum – more than two years! I missed the forum and it’s good to be back. This last week was spring break for some colleges in Pennsylvania, mine included. Thursday we saw beautiful sunny weather, warm enough to shed the heavy winter coats we’ve been wearing for months. Checking weather forecasts, I was pleased to find that Friday would be similarly warm – sunny and mid sixties to seventies! Perfect fossiling weather! I seized the opportunity. I knew these unseasonably warm temps could be gone as soon as they had arrived and didn’t want to miss a chance like this. I drove out with my little brother to a couple of sites I’d visited before. The first was an Ordovician roadcut. I’d been told the rock here was from the Salona formation, but Coburn formation limestone is also known from the area and apparently has similar fossils so I’m not entirely certain on this site’s stratigraphy. After about an hour’s drive we arrived at the site – only to be greeted by two nasty pieces of roadkill at the base of the cut! Agh! Thankfully they weren’t near the collecting area and didn’t have a noticeable odor yet. We immediately set to work, crawling carefully up the gentle slope of the cut and checking each irregular chunk of tan limestone. It didn’t take me long to score several fine Cryptolithus trilobites, as well as some neat mushroom-shaped bryozoan colonies and a handful of brachiopods. The trilobites here are usually found with either the horseshoe shaped ventral side or the noselike glabella poking out of the surface of the stone. They will take some prep work to expose fully – I’m hopeful at least one or two of them are complete under all that stone. Most of them are just isolated cephalons or chunks of Cryptolithus collar. After about 45 minutes on the cut we took a break for lunch, stashing our finds in the trunk. Our sandwiches finished, we walked back out for round two! Scrambling over fallen stone, I managed to score two big blocks with multiple trilobites each. The crown jewel was a block with at least 15 Cryptolithus showing! I probably won’t even attempt prepping that one until I’m a little more confident in my abilities. I’d hate to ruin such a great multi-block of trilobites. After another hour or two at the cut, we’d found enough. Some of our finds: Bryozoans: More trilobites: Brachiopods: Continued in next post…
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Day Two ; Locality One (or Six if you include Day One) Black Sahara, South of Erfoud 20th February 2019 Well this is where things really get interesting, so stick with this thread as there are dozens of photos of fossils coming up. Looks at the tags if you want clues. I was up bright and early and wandered out at about 7 am to watch the sun rise over the still mighty Erg Chebbi dunes. And as night's candles were burnt out and jocund day stood tiptoe over the misty duney tops, the chaps came to join me and managed lots of photos. Here's one, if you would like to see more, I'm busy posting a kazillion of 'em under the Nature Photography thread.
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Hi everyone I think I just found a new hobby With my latest fossil delivery I recieved quite a lot of microfossils & matrix vials as the world of microfossils was something that I have been long interested in. So a 2 weeks ago I finally ordered my first microfossils for which I reserved a special drawer in my archive cabinet. So here is a recapp of what I all got: 3 vials of permian material from Waurika, Oklahoma 1 vial of permian material from The red beds of Archer County, Texas 1 small vial of Conodont rich Mississippian material from the Chappel Limestone formation, Texas 1 small vial of Cretaceous Lower Gault Clay, East Wear bay, Folkestone, Kent, UK A micropalaeontology slide with Jurassic Blue Lias matrix rich in holothurian material. A thin section of an Ostracods filled Elimia snail from the Green River Formation in Wyoming A thin section from the Rhynie chert of Scotland which should contain preserved parts of the plant Aglaophyton major and perhaps even other species. I also got a lot of Bull Canyon micro fossil teeth and 2 cretaceous mammal teeth from Hell Creek In this topic you will be able to follow my path through this newly discovered hobby as I will post my finds and progress Currently I am only working with a clip-on cellphone microscope, but I do plan on getting a professional microscope in the next few months! (Tips are always welcome) So let's put on our Ant-Man suit and explore the microfossil realm So here are some of the first pictures I made of some of the microfossils Starting with the thin slices! Thin slice with Ostracon filled Elimia tenara snail from the Green River Formation, Wyoming Thin slice with Aglaophyton major from Rhynie Chert in Scotland
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Day One ; Locality Five Sahara Desert 19th February 2019 An advert for Erfoud, the fossil capital of Morocco. But no time today, the sun is setting. "Tomorrow", Anouar promises me. And then suddenly we are out of the mountains and on the fringes of the mighty Sahara Desert, the largest hot desert in the world. (Antarctica and the Arctic are bigger, but cold deserts) Many think of the Sahara as being sand, but actually, only a fraction of it is composed of the ergs (sand and sand dunes), most of the desert is hamada - rock desert. It is often fossiliferous. In the west, around Agadir, it is often yellow and contains Cretaceous fossils such as ammonites, south of there, the whitish yellow rocks of the Palaeogene where whale fossils can be found in the desert, but in the east, such as here, the rocks are often grey or black , hence the term, "Black Sahara". They range in age from the Precambrian stromatolite reefs near Ouarzazate through to some Lower Carboniferous patches North of Merzouga near Erfoud. Here in Merzouga they are mostly Devonian in age. Also nodules and geodes containing crystals and desert roses and other strange geological features may be found. And those aren't mountains in the distance, those are sand dunes. The dunes of the mighty Erg Chebbi up to 150 metres high. But no time for collecting today. The sun was setting and it was time for dinner and a sleep. We were going to stay in a Berber desert nomad tent, but they're mostly a bit touristy and some have been forcibly shut down since i was there, but the temperature was going to be only i degree above freezing tonight, so, no thank you very much, a hotel it shall be.
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Hey guys this coral keeps drawing my attention. We have hundreds of horn corals and pretty sure this is one, but it looks different than the others? Do you think it just preserved differently or could it be a less common type of solitary rugose coral? Any thoughts appreciated and thanks for looking!
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Hi Folks, Would appreciate any ideas on this one. My first thought is trace fossil since it branches in so many different ways. It is, however, black and the rest of the rock is brown which makes me think plant or vine type material. Was found near Schoharie Creek in Gilboa NY. Middle Devonian, Gilboa Fm and where I was is full of both seafloor fossil hash (with brachiopods, crinoids, and trilobites) and Wattieza stem hash. What do you think?
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Stocker, C., Williams, M., Oji, T., Tanaka, G., Komatsu, T. and Wallis, S., 2019. Spirits of Yokokurayama: shrine of the Japanese trilobites. Geology Today, 35(1), pp.15-19. https://onlinelibrary.wiley.com/doi/full/10.1111/gto.12255 https://www.researchgate.net/publication/330640693_Spirits_of_Yokokurayama_shrine_of_the_Japanese_trilobites Yours, Paul H.
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Greetings, experts and seekers of expertise and knowledge. I posted an image of my first trilobite, along with a mosasaurus tooth and some images from the Ventura Rock, Gem, and Fossil Show, which took place last weekend. I posted it in Member Collections because it appeared to be the best spot. However, it seemed to have very limited views and comments, so I'm posting in the world famous I.D. section. I'm relatively sure that the little trilobite was correctly labeled, but it would be nice to have comments on that from the experts. I checked it against some images at trilobite.info, and it would seem to be from the order corynexochida. Admittedly, I'm very new to scientific naming, etc. Based on the time frame and physical appearance, it looks like corynexochida to me. It also looks like it is indeed a thysanopeltella (Scutellum?), as it was labeled. So is a scutellum a member of the order corynexochida? I guess I'm just looking for confirmation on the labeling, and of overall condition, prepping, etc. I realize that I could be all washed up on most of what I just said. I claim nothing but ignorance. Many thanks in advance. Cheers.
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Been taking some pictures of fossil finds the last couple weeks and decided to share. These are from our last couple trips.
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Back to the late Devonian with a touch of Cretaceous.
Manticocerasman posted a topic in Fossil Hunting Trips
Last weekend we made a trip to my favorite Devonian hunting spot. As usual we found a few goniatites, but apart from this we found a lot of smaller fossils like brachiopods, crinoids and even a bivalve. and a few other nice surprises. The small bivalve: glyptohallicardia sp. 2 valves and pyritised, only a few mm wide with bot halves preserved. a very nice crinoid calyx a tiny brachiopod ( Lingula ) One of the best finds of the day was a fish tooth, I’m still unsure on the species, but I think something in the area of a Euchondrocephalid like Helodus. It the my oldest tooth in my collection Still, I did find an even better fossil , I’ll let you speculate on what this might be, but for now it is packed in the trunk of my car and I’m going to drop it off to the local institute Halfway on the way back home we spotted a construction site with a little bit of chalk coming out of the ground, we stopped for a prospection and came back with a few incomplete echinoids and 2 belemnites . So it is always worth to stop at an interesting looking spot.thumb.jpg.d5c535aed37d487665a3287dbc430d61.jpg)
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From the album: Vertebrates
Pattenaspis rogalai (Balabai, 1962) Early Devonian Dniester Formation Usteczko, Volyno-Podolia Ukraine -
Good Walliserops trifurcatus?
Raulsaurus posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello! I would like to know if you think that this trilobite is a good piece. The seller assures me that it is 100% natural, without restorations and with all the real spines. What do you think? This walliserops is from Foum Zguid I can get more photos or videos. Thank you. I hope your help.
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Hello, I recently accuired these French trilobites from an old collection. They are ID’ed as Phacops latifrons from the lower devonian of Vireux France. Doing some research I suspect that they aren’t called that way anymore. Can someone assist me with the correct name? Thanks!
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Fossils on Wheels received another generous donation to our education programs this week. TFF member @Herb sent us a box of super cool invertebrates. He sent us a diversity of fossils from the Southern US that cover a wide range of eras. These fossils will be given to students in fossil starter kits and used in hands-on activities. Herb's donation is also awesome because this pushes me to learning a lot more about invertebrate fossils. One of the best parts of teaching kids about natural history through fossil exploration is that I get to learn a lot. Good teachers learn and challenge themselves so they can challenge their students. I do not have a lot of knowledge about these types of animals but I am so excited to start learning. Among the fossils we received were- Mississippian Corals and Brachiopods from Kentucky, Crinoid stems and Silurian sponges from Tennessee, Cretaceous Gastropods from Texas, and Eocene Bivalves from Alabama. Thank you Herb for a generous donation that will get put to good use
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I am leaving tomorrow for a five day trip to explore some of the Moroccan Middle, High and Anti-Atlas Mountains and parts of the Sahara. Yaaaaaaaaaaaaaaaayyyyyyyyyyyyyyyyyyyyyyyyyyyyy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! If I seem a bit overexcited, it's because I am. This will be my first Moroccan collecting trip since the TB struck me in 2011/12. I won't be posting on a day by day basis, i don't think, as my laptop stays here and wifey's phone thing is beyond me. However, wifey's presence for the first time on one of my trips will enable me to take photos for the first time ever. I hope. A past student of mine who is a tour guide here is driving, along with his brother, because he gets asked geological questions a lot by the tourists and hasn't a clue. So in return for free accommodation and transport I have to teach a little basic Moroccan geology. I think I'll have to pay for the booze and fossils though. But I'm hoping to find more than I buy! So many, I hope, that I'll fill the 4x4 with them and wifey and the brother will have to walk home. Wish me luck, full trip details to follow when i am able.
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Although we are currently in the depths of February, spring is just around the corner! With spring comes spring break and a week of digging!! One of the locations I am planning a visit to is Jamesville quarry in Jamesville NY. I would love to unearth some nice placoderm pieces. If anybody has info about the site, especially who to contact for permission, I'd greatly appreciate it!
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Today we had a field trip with the "Lithos" geology club at my favorite hunting spot. Although the day started with freezing temperatures, the sun quickly rose the temperatures during t morning and gave us a beautiful day. the last time I visited the quarry the finds were disapointing due to the lack of activity in the quarry, but today we were lucky and the past week a new acces road was being dug to the side of the quarry, straight through the Matagne slate. It didnt take long before I found my first fossils, at first a few halve goniatites, but after a while a complete large specimen and a nautiloid that I had never seen before at this locaton. we searched further in the quarry where we found the spot where the rest of the slate was dumped, resulting in a couple extra goniatites, one of them was an exquisite specimen and a 2nd nautiloid. Note that al the goniatites this time weren't Manticoceras specimens, but an other Gephuroceratinae: Crickites sp. they differ from the former with a more bulbous shape and large size ( up to 30cm in diameter ) In the afternoon we prospected the usual scree piles at the back of the quarry where we found a multitude of small pyritised cephalopods and I even found a broken nodule with very rare placoderm remains. Natalie also found a large and complete Crickites sp. at this spot This day turned out to be one of my most productive days at this location.
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