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Showing results for tags 'eocene'.
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Plagiolophus minor (Cuvier, 1804), a Perissodactyla
oilshale posted a gallery image in Member Collections
From the album: Vertebrates
Plagiolophus minor (Cuvier, 1804) Late Eocene Ludian St. Hippolyte-de-Caton Gard France -
Hi, I'm a new member here, though I've read threads on the forum for years. In the warmer months, I'm an entomology geek, and I'm usually out trapping moths at my backyard UV setup or snapping pictures of dragonflies and the like. I'm also a longtime rockhound and paleontology fan, and it's the combination of my love for bugs, our cold-as-all-get-out winters here in MN (in winter there are no bugs), and the availability of fossil shale from the private Florissant Fossil Quarry that brings me here. Long story short, I'm interested in finding some fossil insects, and I've recently purchased several pounds of shale from the private quarry. I've already found a gorgeous fossil leaf (presumably an extinct elm, if my research online is right; that's the second photo, taken via smartphone), and I think I've found a fossil fly of some variety. My question: Is it wishful thinking? This photo of the perhaps-bug is through a Aven digital microscope. The magnification on it isn't bonkers (only 10x-50x), but it is still a heck of lot better than with the unaided eye. (This thing is tiny. If need be, I can find a metric ruler for reference.) OK, thanks, and take care.
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After big rains Idecide to prospect in some eocene outcrops of my country I begin in a career with marine deposits. A lot of differents fossils can be found like echinids, oyster, crabs, shark, gastropods
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Found a couple of oddities today, odd to me as I have never seen anything like it. Hopefully one of you have. The first is from the Eocene, Castle Hayne formation. Could it be a color impression , or mold of a coral ? The second is from the Cretaceous , Peedee formation. It looks like bryozoans , but why just in the hole ? Where they washed into the hole? The scale is mm in the first pics. Your thoughts and ideas are appreciated. Thanks.
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This was found in North Carolina, Castle Hayne section 3/4 strata. A fellow club member ventured it was a calamites, I was told those were extinct by the eocene so maybe an equisetum? What is it? The collage is stages of simple prep.
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Hello Everyone! I found this tooth a while back at a Ypresian, Eocene site (Nanjemoy Formation, Woodstock Member.) It puzzled me for a while, I assumed it was a weird Otodus or something until someone IDed it as a Cretalamna at a local fossil club. Apparently they have their last gasps in Maryland’s Ypresian. However, I was then informed by some people familiar with the roughly contemporaneous London Clay that it looks more similar to Parotodus pavlovi. That species is not yet described from the formation, and despite reaching out to a few collectors who have collected this formation extensively, I cannot find anyone else with one. What say you all? Scale in CM
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References: Blainville H.M.D. (de), (1818) Poissons fossiles. Chap. VII. Des Ichthyolites du bassin de la Méditerranée. a. Des Ichthyolithes du Monte Bolca, ou Vestena Nuova dans le Veronais in Nouveau dictionnaire d'histoire naturelle, appliquée aux Arts, à l'Agriculture, à l'Economie rurale et domestique, à la Médecine, etc. Nouvelle Edition presqu'entièrement refondue et considérablement augmentée, t. 27, p. 334-361. Woodward A.S., (1901) Catalogue of the fossil fishes in the British Museum, t. 4. Blot J., (1980) La faune ichthyologique des gisements du Monte Bolca (Province de Vérone, Italie). Bulletin du Muséum national d'Histoire naturelle: 339-396, fasc. 4, sér. 4, t. 2, part. section C. G. Carnevale, A. F. Bannikov, G. Marramá, J. C. Tyler, and R. Zorzin (2014) The Pesciara-Monte Postale Fossil-Lagerstätte: 2. Fishes and other vertebrates. Rendiconti della Società Paleontologica Italiana 4:37-63. A. F. Bannikov (2014) The systematic composition of the Eocene actinopterygian fish fauna from Monte Bolca, northern Italy, as known to date. Studi e ricerche sui giacimenti terziari di Bolca, XV - Miscellanea paleontologica 12:23-34
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Found recently in Split, Croatia, near Adriatic sea, on hill called Marjan Location If someone can tell the species? Thanks
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- croatia
- echinoderm
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Found today in Split, Croatia Is it some shell? It is about 30 cm long (about 12 inches)
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Recently went for my first fossil hunting trip at whiskey bridge on brazos River. Had a great time and found some cool stuff.
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I started fossil hunting about 27 years ago. My kids were quite young at the time but I also made it a point to go on one big fossil hunting adventure once a year. My kids are all grown and have their own lives but they sure saw and did a heck of alot while they lived at home! Back in these early days I would always stop at this one particulare rock shop and do some trading but in a back room were these gigantic dino bones!!! Got all my boys a workin!! Crack that whip I say!!! I think this was our first trip to Tinsky's? Back at Scotia I was always lookin for these pectins. The very first big fish I ever found. Still have this one. I didnt have much moneys in these old days and made this frame out of some 2x4 and found some free mahogany and did some carving.
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Hi, Brand new to the site and fossil hunting. Went out for my first time ever and found quite a bit but can’t figure out what this one is. Found at Whiskey Bridge near college station Texas. Sight is well known and says most fossils date from 30 to 50 million years ago when this part of Texas was a shallow marine environment. Any help would be greatly appreciated.
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McLoughlin, S., Bomfleur, B. and Thomas, M., 2016. The weird world of fossil worm cocoons. Deposits Magazine, 46, pp.399-406. https://www.researchgate.net/publication/304285376_The_weird_world_of_fossil_worm_cocoons/link/5b83a324a6fdcc5f8b6a4506/download https://www.researchgate.net/profile/Stephen_Mcloughlin http://www.diva-portal.org/smash/get/diva2:1047133/FULLTEXT02 McLoughlin, S., Bomfleur, B., Mörs, T. and Reguero, M., 2016. Fossil clitellate annelid cocoons and their microbiological inclusions from the Eocene of Seymour Island, Antarctica. Palaeontologia Electronica, 19(1), pp.1-27. https://palaeo-electronica.org/content/in-press/1448-eocene-annelid-cocoons https://palaeo-electronica.org/content/pdfs/607.pdf Yours, Paul H.
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- annelid
- antarctica
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I started collecting a new Eocene research site in Virginia this year. I have written landowner permission to collect this site. I’m posting a few quick pictures of what I found in a single recent trip to this site. When I’m at the site, I dig formation out and sift it in a ½ inch mesh sift in stream water. A window screen catches what falls through the ½ inch mesh sift. I take home the material caught by the window screen, break it down further through washing/drying cycles, and finally search the residue for fossils. I spend about three hours per trip sifting at the site and another 3 hours or so breaking down the material that I brought home. I want to show what I find at the site in the ½ inch sift versus what I find in the material that I bring home. For those of you who sift at a site but don’t catch what falls through your sift, I want to show you what you could be missing. Every site is different. However, unless you bring some of the smaller material home to check it out, you will never know what you are missing. The below picture shows what I found in my sift at this site in my ½ inch mesh sift during this trip. I could use a ¼ inch mesh sift at the site to find more at the site but that dramatically increases my time looking in my sift at the site and the smaller mesh size tends to damage more (cusplets, root lobes, etc.) of the specimens that fall through the mesh. Not a bad trip with some turtle bone and shell, a few sand tiger teeth, a few large bony fish vertebrae and some large fish coprolites. For the record I usually find a few more shark teeth in my sift than I did this trip. However, all of the pictures below show what I found at home in the material that was caught by the window screen, a very large number of high quality fossils. For size reference the white paper plates are 9 inches in diameter and there are two gem jar sizes, 1.75 inches and 1.125 inches in diameter. Nice quality shark, ray, bony fish, sea snake etc. specimens: Damaged or lower quality specimens: Mostly odd bony fish bones: Bony fish vertebrae: Shark and ray vertebrae: Bony fish jaws and partial jaws: Ray teeth and ray dermal denticles: Cookie cutter tooth and a few nurse shark teeth: Fish coprolites: Lignitized fruits/seeds: Pyrite shell casts: If I only sifted at this site and didn’t take home material caught by the window screen look at all of the fossils that I would be missing each trip. What are you missing???? Marco Sr.
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- eocene
- shark ray bony fish sea snake turtle etc.
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While we're having the most serious debate about a Pterosaur in amber in another TFF section I like to share this perfectly preserved Caterpillar newly descriped as Eogeometer vadens by scientists from Munich Especially the details are superb! Paper in english with no paywall: https://www.nature.com/articles/s41598-019-53734-w#Fig1
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- amber
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It was a busy summer, and now it is snowing. I got out a few times this summer and here is my report for y'all's enjoyment. Most of my outings were into Wyoming's early Eocene. Way back in the spring I went to a newly discovered mammal site. I showed one jaw here: Here is a view of the site. This is the early Eocene Wind River Fm in central WY. (Wasathcian in age). Lots of land to look at out here, and I have only prospected a wee bit of it. My pack is down thereon the flats... let's see if we can find any fossils down there. OH, look... a mammal jaw. And can you find an additional bonus tooth in there? Right next to this there were a group of crocodile bones. Again... find the bones. I dug around quite a bit to try to find the source of these bones and got totally skunked. I usually get out into the Eocene beds of southwest WY on Labor day, but this year it happened a month late, so here are some pix from the first weekend of October. It starts getting cold at this time of year. The first photo is me at an abandoned oil well site where the oil folks had scraped up a limestone layer in their bulldozing. The layer has bones in it... mostly turtle pieces and lots of very small (and practically un-prepable) fish bones. If you break rocks long enough you will find good stuff. Below are a the best things I found on this visit. For those interested, these things are prepped with ye ole air abrasive under the microscope. Dolomite at about 20 psi. There is potential for the air abrasive to abrade the bones and I am not sure if these teeth got overly air abraded or are suffering form Eocene erosion. It is very slow prep, so I don't focus too much on this layer. First a little croc dentary. Note that the bone runs off the edge of the rock. I spent a long time looking for the rock that contains the rest of this jaw... again, skunked. But this is a good little find. The empty roundish area to the right of the jaw is the impression of a snail. fresh water snails of the genus Physa are the most common fossils. This next bone is the angular bone of a small croc. The angular is one of the bones in the lower jaw. The limestone layer is in the Wasatch Formation. After busting up enough rocks, I went to one of my favorite sites about a half mile away. Also in the Wasatch Fm. This layer sits just above the same limestone layer that I collected at the oil well site. Here I am digging. Note the weather is getting nicer; I have jettisoned the coat. This site is full of small randomly distributed fossils. Again, mostly turtle pieces, but also some good croc material and occasional mammal teeth and jaws. And here is a distant view of the quarry. The limestone with bones is seen as an small cliff just below my backpack. So, let's look at a few fossils. First an emerging soft shelled turtle piece ( a costal plate). That is a dental pick for scale. The digging here is best done slowly so you don't break the bones. You can see other pieces of bones in here. The first photo in the next post is the same turtle piece fully exposed.
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I was going to post this in the fossil of the month for July, until I looked at the date it was collected...mid-June. My, how time flies. Last Spring I found a nice Eocene mammal tooth site west of home. In a few hours I collected a few teeth and made a note to return soon. I did so in June and spent another few hours there (as well as exploring other nearby sites). I collected about 20 complete isolated mammal teeth and two jaws. Here is the better of the two. I am pretty tickled with not only this specimen, but this site as well. It will be a lot of fun to keep going back to. That is my fingerprint for scale. The front of the jaw is facing left; the missing jaw joint is on the right. Notice that the first tooth on the left (third premolar) is taller than the others, and that the third molar (right-most tooth) is quite long. As far as I know, these make it a primate. Not a monkey, mind you, but something along the lines of more primitive primates, such as tarsiers. (Then again, the current classification of these things is quite complicated and it may not be a primate at all). There was quite a collection of these things and similar beasts here during the Eocene, mostly quite small and only known from teeth and jaws. so in FOTM format: Date of Discovery... 15 June 2019 Scientific and/or Common Name... Primate Geologic Age or Geologic Formation... Wind River Fm., early Eocene State, Province, or Region Found... Wyoming Photos of Find (Please limit to 4 clear, cropped, and well-lit images.) see below. (If prepped, before and after photos are required, please.)
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Ive been working on a most wonderful crab concretion these last few weeks and finally got to the grinding stage to smooth out the tool marks. While grinding at times I would realize a bad smell? About the 3rd or 4th time I smelled this smell I began to wonder what was going on? and no, I wasn't passing gas, (just to stop any of you funny business type fellows). My guess is sulpher? I noticed when i was prepping this crab that its got a bit of pyrite in it so the rock must too? Right? Has anyone ever experienced this? Can grinding on a rock with sulpher in it produce a bad smell? Its not a big deal but just wondering. RB
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Hello I found this along a small spring fed stream in Gonzales county, Texas. This area has produced plenty of ice age fossils and was home to numerous boiling mud pits which ended in the late 70s due to oil production; not sure how relevant that it haha
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From the album: Pisces
12mm. Sand Tiger. Upper Posterior. Eocene Khouribga, Morocco -
From the album: Pisces
22mm. Sand Tiger. Lower posterior. Eocene Khouribga, Morocco -
Fossil dragonflies from the early Eocene Okanagan Highlands, western North America (open access paper)
Oxytropidoceras posted a topic in Fossil News
First fossil dragonflies from B.C. identified and named Simon Fraser University, November 04, 2019 http://www.sfu.ca/sfunews/stories/2019/11/first-fossil-dragonflies-from-bc-identified-and-named.html Fifty-million-year-old dragonfly species that once flew in B.C. identified for first time. Identifying dragonflies from fossils involves mapping their distinctive wings and comparing the results to species living today. By Kevin Griffen, Vancouver Sun, November 4, 2019 https://vancouversun.com/news/local-news/fifty-million-year-old-dragonfly-species-that-once-flew-in-b-c-identified-for-first-time The open access paper is: Archibald, S.B. and Cannings, R.A., 2019. Fossil dragonflies (Odonata: Anisoptera) from the early Eocene Okanagan Highlands, western North America. The Canadian Entomologist, pp.1-34. https://www.cambridge.org/core/journals/canadian-entomologist/article/fossil-dragonflies-odonata-anisoptera-from-the-early-eocene-okanagan-highlands-western-north-america/74A59170711807272E35236BA309AC9A Related paper is: Archibald, S.B., Greenwood, D.R., Smith, R.Y., Mathewes, R.W., and Basinger, J.F. 2011a. Great Canadian Lagerstätten 1. Early Eocene Lagerstätten of the Okanagan Highlands (British Columbia and Washington State). Geoscience Canada, 38:155–164. https://www.researchgate.net/publication/262485004_Great_Canadian_Lagerstatten_1_Early_Eocene_Lagerstatten_of_the_Okanagan_Highlands_British_Columbia_and_Washington_State Yours, Paul H.-
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- anisoptera
- auroradraco eos
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From the album: Vertebrates
Thaumaturus intermedius Weitzel 1933 Eocene Messel near Darmstadt Germany -
Phyllodus pharyngeal plates from the Eocene of Virginia
MarcoSr posted a topic in Member Collections
I’m posting the nicer Phyllodus pharyngeal plate specimens that I’ve collected over the years from the Eocene Nanjemoy Formation of Virginia because many collectors really never get to see Phyllodus specimens. These mouth plates come from bony fish. I only find a nice specimen every 7 or 8 trips to the Nanjemoy Formation so they are not common. There is a wide variation in the tooth morphologies of these mouth plates. No two mouth plates are identical. The mouth plates are comprised of individual varying sized and shaped teeth and can have up to six layers of replacement teeth. However, White (1931) demonstrated that these variations were merely variants among a broad range of possible intergradational morphologies and Estes (1969) synonymized the previous named species with P. toliapicus. Some specimens still have formation matrix and other debris on them because I don’t clean them in my ultrasonic cleaners like other specimens because individual teeth can dislodge very easily. The below specimens range in size from 7 mm to 22 mm in the longest dimension. Continued in next reply Marco Sr.
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- eocene
- phyllodus pharyngeal plates
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What do y'all think these are? They're bits of debris from a slide I was working on. All I can really tell you is that they were photographed at 40X magnification, scale bar 50 microns. This set of slides is across the Paleocene to Eocene, but I unfortunately don't know what rock this single slide sample is from. Sample is from the Hanna Basin in Wyoming.
