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Showing results for tags 'devonian'.
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Two For One- Platystoma Gastropods from Glenerie
Jeffrey P posted a gallery image in Member Collections
From the album: Lower Devonian
Platystoma ventricosa Two Platycerid Gastropods (attached- 2 1/4 inches across) Lower Devonian Glenerie Limestone Tristates Group Glenerie, N.Y.- 2 comments
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Today I was supposed to go Fossilhunting in the Silurian Rochester Shale, but plans got changed. All of the people I was supposed to go with came down with one of the many illnesses going around CNY. One of my friends, Tim, was going to my favorite Devonian site so I decided to go with him. My friend Tim is also a member of my local club and I have known him about 20 years. We met up at one of the thruway exits and he followed me to the site. The day was great, without a cloud in the sky. It was still a bit chilly until the sun got higher. Eventually i was able to take my long-sleeved shirts off and put on my t-shirt. Another club member named Sue, who lives only about 5 minutes from the site showed up unexpectedly after about an hour or so. So the 3 of us chatted it up for a couple hours. The finds were pretty typical of the site and many of the usual suspects showed up. I was very happy to find a complete Eldredgeops roller, which has a disarticulated pygidium, right of the bat. I was even more happy when just a short time later I found another Dipluera which looks so similar to the one I found last week. It was partially covered exactly like last week's that at first I thought it was the negative of that one. After a closer look I realized it was a different one all together. I also found a couple Greenops, that might turn out ok as well. All in all it was another great day with good company. I am really liking how 2024 is turning out for me fossil wise and I hope this streak continues. I hope everyone is doing well.
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Today was a totally awesome day for fossilhunting here in Central New York! The weather was great for March and I had great company. And I haven't even mentioned the fossils yet. I had made plans to get out on a Devonian dig with my friends Stephen( @Buffalopterus ), Trevor, and Gary. I got to the site around 8am and was delighted that it was nice and Sunny. I was surprised when another car showed up and it turned out to be Eric, ( I can't remember forum name). The other guys showed up around 10, followed by Eric's friend Cassie. I really enjoyed everyone's company we all were joking around and laughing the entire day. As the sun got higher it kept getting warmer. And it seemed that everyone was finding stuff. Trilobites were very abundant today. Everyone found multiples I think 5 mostly complete Dipluera's were found today even though they were all small. I lost track of how many Greenops were found, but it was alot, and there were a couple Eldredgeops in the mix. I will say the the Greenops that were found by Trevor were the biggest and nicest ones that I have ever seen from there. He probably found the most Trilos out of everyone today. Lots of nice Brachs, Bivalves, and Gastros, as well. Just a great day all around. Here are my finds. And yes I got another Dipluera!
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Sacramento Mountains - New Mexico, Ordovician - Mississippian exploration
Kato posted a topic in Fossil Hunting Trips
This was purely an exploratory hike to a remote area with no expectation of finding much. In that regard, I was not disappointed. I'd previously last covered some of this ground about 5 years ago and had forgotten how formidable it was to get into. The walk in a rocky canyon bottom for about 2.8 miles before taking another rocky side canyon ending at an Ordovician-Silurian dry water fall. Approaching the base of the dry water fall with Ordovician bedrock that was pretty much non-fossiliferous. At the base of the dry water fall to get a nature shot. This looks like it should be climbable and, perhaps it is, but I'm getting a bit too long in the years for such risky business. I took a bushwhack side trip up a steep hill. Fortunately, it had rained recently and the otherwise loose scree was a delight. Even if one could climb the lower falls they are faced with an unclimbable Silurain vertical wall. A view of that dry fall from the other side.
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Howdy folks! I’ve had a lot going on so I haven’t been super active on here as of late, but I wanted to do a little recap of some of my favorite finds and acquisitions of 2023. Hope yall enjoy! Thanks for looking! First up is by far my favorite find from last year. This bug was collected as a ventral specimen in February, and was flipped and prepped dorsally by Jon Ginouves. Hypodicranotus striatulus is an exceptionally rare species from the Middle Ordovician Trenton Group of NY and equivalent strata in Canada. This is the first NY specimen I have ever seen or heard of coming out of strata outside of the Walcott-Rust Quarry. Up next is another piece from the same locality as the Hypodicranotus. I believe this came out of the site in the late spring or early summer. Generally, juvenile Gravicalymene magnotuberculata are near impossible to find, but I stumbled upon a mass plate containing around 20-25 specimens ranging from prone to fully enrolled. It is entirely possible that this is the largest cluster of this species ever collected, which is pretty sweet. This pic doesn’t show the whole plate, but you can get the general idea of how plentiful the trilobites are! This next specimen is just a cephalon, but it is from the iconic and very rare Walcott-Rust Quarry trilobite species Sphaerocoryphe robusta. This was found when I visited the locality in June with @KompsFossilsNMinerals . Normally I only focus on trilobites while collecting, but this past October I made a couple short visits to a Fiddlers Green Formation eurypterid site very close to my college campus. Eurypterid material is very sparse, but I did find some pretty interesting pieces. The most exciting of these was a partial Dolichopterus macrocheirus specimen showing the prosoma, 2 tergites and most of the appendages. Along with the usual trilobite suspects, I also ventured into some new territory strata-wise. I was able to visit an Onondaga Limestone locality several times during the summer and fall where I found half a dozen or so Odontocephalus selenurus specimens. Through my work in the Tully Limestone, I have become good friends with Steven Mize, who primarily collects the unit’s trilobite species. He invited me to come collect the Tully with him in July, which is when he gave me this beautiful enrolled specimen of an undescribed Basidechenella sp. While out collecting, Steve found this plate of 6-8 undescribed Asteropygine sp. , which he was kind enough to let me keep! During this past fall, I became very interested in the various Cambrian biotas of China. Here are a couple of Radiodont appendages I acquired. I believe the first one is Guanshancaris kunmingensis, and the second is Anomalocaris saron. This is my favorite trilobite I acquired from China. Although it is only a partial, this Redlichia mansuyi from the Guanshan biota exhibits one of its robust antennae!
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Any idea what this silicified Devonian Martin Formation fossil from the Verde Valley in Arizona is? The holes are 0.6-0.7 mm across. Big piece is about 10 cm across. Similar pattern of holes is on back side
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I saw a post on facebook that someone was looking to get rid of some fossils they had collected locally so I arranged to meet up this afternoon. Most of what was being offered were carboniferous fossil ferns from St Clair and they had some beautiful examples from the site that has been closed to collecting for several years now.
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I have another very small fossil from the Moscow Group at the Penn Dixie Park in Erie County New York. I believe this is the long-spined ostracod Aechmina, but I am open to other suggestions (trilobite piece, brachiopod spine, etc???). This is very small as you can see in the measurements below (less than 1 mm) and is in the matrix, I have scraped away as much matrix as I dare at the moment and to me the lower edge in the pictures looks like it is a natural (unbroken) edge and is the end of the fossil. I would like to expose a bit more at the top, where the hinge line should be if it is an ostracod, but have not dared to do that yet due to small size and potential fragility. @Acryzona has shown a specimen of this genus from the Devonian at Paulding (https://www.thefossilforum.com/gallery/image/57600-aechminajpg/) and Hall in a very old publication reported the genus from the Devonian of New York (the old drawing did not look much like this specimen), but I have not found any specific mention of it from Penn Dixie. Any Penn Dixie or ostracod experts, or anyone else care to voice an opinion? I appreciate all suggestions.
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Fossil here is in devonian age strata of Oklahoma, I did not think there were many lobsters and stuff, could this just be geological
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just prepping this Lungfish from famous Achanarras-Quarry. Comes from an old collection, partly prepped. Did not expect that the fins are preserved, but they are... what do you think? Is it Dipterus (what I think, too), or Pentlandia? (green rim does not belong to the fossils, prepmarks what has to be removed next days Lenght is 16 cm, approx. 6,5 inch
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Hi everyone! I visited an exposure of the Milwaukee formation within Milwaukee city, Wisconsin this weekend. Found lots of brachiopods, corals and bryozoans, and brought some rocks home. Then today I decided to smack some of them with a hammer - and this trilobite pygidium emerged out of nowhere. I don’t know a lot about inverts - can anyone help with the ID please, if it’s identifiable at all? I’m pretty sure it is from the Lindwurm member of the Milwaukee formation (Givetian - Middle Devonian). Thanks!
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I am fortunate enough to have such a huge amount of Middle Devonian Givetian material that I thought it best to put the older Middle Devonian stage, the Eifelian, in its own thread. There are some spectacular fossils here as well though! I thought a good place to start would be in the Formosa Reef, which I believe is quite early Eifelian. This tabulate coral and stromatoporoid reef continues similar complexes found from the Middle Silurian, see my: https://www.thefossilforum.com/topic/84678-adams-silurian/page/3/ thread from page three onwards for details. All these Formosa Reef specimens come from a delightful gift from my good friend @Monica who is a tad busy with life at the moment but is fine and still thinking of the forum. This outcrop can be found on Route 12 near Formosa/Amherstburg, Bruce County, Ontario, Canada. This beautiful-looking specimen came to me with only a third of it revealed but I managed to get it this far after nine days of painful pin prepping. Monica found another one and posted it for ID here: https://www.thefossilforum.com/topic/105528-weird-circular-imprints-formosa-reef-lower-devonian/#comment-1172285 The specimen was identified by another Canny Canadian @Kane to be the little stromatoporoid sponge Syringostroma cylindricum. Hardly a reef-builder, but gorgeous nonetheless. It does have a little thickness to it, but not much. Beautiful! Pretty thin, actually. I love this Monica, thank you!
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From the album: Invertebrates
Rhadinocrinus sp. Early Devonian Emsian (early) Kaub Formation Bundenbach Germany -
This was my first winter fossil hunting in NJ (or anywhere, as a matter of fact). Definitely a different experience from summer and fall. Less people, and much better fossils! Although the people I have run into were pretty devoted, which I can appreciate. Thought I would document my 4 hunts between December and this past weekend. First up, 12/16. On of my favorite Cretaceous brooks. Found an awesome variety of fossils, one of which turned out to be a Theropod tooth! Group Shot Devonian glacier erratic with Crinoids, Bryozoan and Brachiopod or Bivalve impressions. Gastropod Steinkern Ammonite Steinkern Crustacean claw piece A. phasolus Crusher Tooth Enchodus sp. Tooth w/Jaw fragment Squalicorax sp. (Crow Shark) A. kopingensis (Mackerel Shark) Theropod Tooth
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I found these at the same location. Petersburg wv in shale/ seems too cool to be true.
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A couple weeks ago I was on a fossilunt with my friend Stephen to a Devonian locale near Canandaigua Lake. This was a new spot to me, but is a known spot located on private property. This area is known for crinoids and large Eldredgeops, some up to 3 inches. I went with Stephen and his friend Gary. We arrived shortly after 9am. We parked in the owner's drive way and had a fairly long walk across to cow pastures to get to a creek located in the treeline at the back of the 2nd pasture. This is a Hamilton Group Moscow Formation Middle Devonian site. Crinoid pieces were very abundant in certain layers as well as trilobites in other layers. I found a fewtrilos mostly complete but covered in matrix. Gary found a decent roller. Some rather large corals were found by Stephen. I enjoyed collecting some Naticocema lineata gastrops as these were new to me. I didn't bring a ton of finds home but I was happy with my haul. I am posting pics of my finds, but will post more when I have a chance to take other pics. Some of my finds do not photo well.
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I dissolved limestone from Michigan in acetic acid and got some interesting things, among them these. The source for the limestone is unsure of their exact age. Ordovician-Devonian. Any ideas?
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Trace burrows.. species? Central NYS, glacially transported cobble from till. Likely constrained to upper Devonian to mid Ordovician. Siliciclastic, clast supported, fine sand to silt, little clay, moderately well sorted, sub-angular, quartz, feldspars and lithic fragments, highly porous matrix, 6" on long axis. Thanks in advance..
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Hi all. This is from Swatara State Park in PA (ordovician/devonian). Many shell imprints, which are hard to see the way I took the photo, but my son and I were wondering what the little starfish would be. It's very small, maybe 5mm. Anyone have an ID? Thanks so much!
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Hi, I'm having a brain lapse and need help identifying the form of iron I'm seeing. Some of the nodules I found seem to have a cubic structure much like standard pyrite but others are perhaps suggestive of hematite in its many crystalline forms? Also, some of the crystals are a glassy reddish color and slightly gemmy in appearance while others are completely black. Apologies for the shots. They were taken outside in a shady area but some of them show a yellow reflectance on the top facing reflective faces. Only the 3rd shot of the black nodules actually has yellowish and red staining. These were found coincident to a formation known as the Sly Gap formation which is a Devonian formation here in southern New Mexico. I believe I recall reading that that formation had nodules like this. The nodules range in diameter from 10mm to 30mm.
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World's earliest fossilised forest discovered in Minehead, Somerset, England
Oxytropidoceras posted a topic in Fossil News
World's earliest fossilised forest discovered in Minehead, Somerset By Greg Brosnan, BBC News Climate and Science, March 6, 2024 Earth’s earliest forest revealed in Somerset fossils By Sarah Collins, University of Cambridge, March 7, 2024 THe open access paper is: Davies, N.S., McMahon, W.J. and Berry, C.M., 2024. Earth's earliest forest: fossilized trees and vegetation-induced sedimentary structures from the Middle Devonian (Eifelian) Hangman Sandstone Formation, Somerset and Devon, SW England. Journal of the Geological Society, pp.jgs2023-204. Yours, Paul H.- 2 replies
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Brachiopod with attached Codiacrinus schultzei
oilshale posted a gallery image in Member Collections
From the album: Invertebrates
Brachiopod with attached Codiacrinus schultzei Early Devonian Emsian (early) Bundenbach Hunsrück Germany- 1 comment
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A few weeks ago some friends and I visited a site near Braidwood in southern NSW (3 hours south of Sydney) for middle-late Devonian fish. The site was first published in Ritchie (1984) with the description of Placolepis budawangensis, a phyllolepid known only from this locality. This species is one of the two most common here, with the other being Bothriolepis longi (see Johanson 1999). So far, only these two species have been described from this locality but acanthodian spines and sarcopterygian scales are also known. All fish fossils from this locality occur in within a 75cm band of red siltsone and are mostly just disarticulated plates, but the P. budawangensis holotype is still fairly well articulated. The plates of both species are very recognisable, the Placolepis usually have lovely parallel ridges whereas the Bothriolepis are covered in tiny bumps. Some photos of the siltsone band with some fish plates exposed on top. Peter did a great job on this hole, it's not easy work! The specimens from this locality are quite weathered, so the bone is usually quite poor and doesn't split well. They still look nice, but I chose to dissolve away the bone in hydrochloric acid to latex the cavity for photography. Here are some as found: Placolepis: Bothriolepis: Some bone in cross section (the horizontal black dotted lines): Here are some latex casts of specimens after acid preparation. The latex is blackened with ink, then whitened with ammonium chloride for high contrast photos. Much easier to make out features in these than the unprepared specimens! Bothriolepis longi plates and pectoral fins (compare with figures in Johanson 1999): Placolepis budawangensis: Sarcopterygian scale(?): No idea on this one! After the fish site, we quickly stopped in at a road cutting which yields occasional Devonian plant fossils. Nothing too exciting, but still nice to find some Devonian plants! That's all for now, I might post more ammonium chloride photos when I take the next batch. Hope you enjoyed!
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After attending a conference in Norman, Oklahoma, I slipped down to the southern part of the state taking a few days to explore a bit of America I have never experienced before. This trip report focuses on the Devonian of the Arbuckle Hills, more specifically, the Haragan Formation. My research ahead of my trip provided me with a few marginal sites to play in. Little did I know, luck would be in my favor that day and provide me access to a couple great sites. I was collecting along a road, a site offered to me by a forum member, and not finding anything substantial. A truck came up over the knoll and stopped next to me. The occupant rolled his window down and asked "what are you doing" in a slightly unfriendly voice. An explanation of who I was and what I was doing appeased him. After a long and friendly conversation on many topics, he suddenly surprised me by asking would I like to fossil hunt on "his" property? He went on to tell me his parents, who really own the property, used to allow fossil hunters on the land for a fee. But due to their age and a few unscrupulous fossil hunters they ceased granting access. I asked him " is this the "White Mound" location and he verified that it was! What luck! He unlocked the first gate and the only thing he asked of me was to lock it as I left. He then said I would have to go through a second gate to get to the fossil site and explained I would likely be greeted by his goats at the gate. You can see he wasn't kidding. I was proud of myself for slipping my vehicle through the gate without a single goat escaping. As I arrived at the site, it became apparent, looking back down the path used to reach the site, that the goats were going to be my friends while I searched for fossils. Look at that train of goats as far as the eye can see. My guesstimate was about 300 head, all friendly. Fossils were weathered out, easy pickings! It was hard to keep track of what specimens I had found already so I didn't overharvest. Here are some of my finds: As mentioned already, a forum member referred me to this roadside collecting spot. It was explained to be by a gate with 2 eagle statues on it. This was Jimmy Houston's property. For avid fisherman on this forum, the name is famous as he is the star in the TV series Jimmy Houston Outdoors. For years, as I religiously watched him teach America how to fish, I took to the water applying his techniques to my fishing grounds, the Mississippi River. Maybe his educational techniques were too good, for the thrill of discovery diminished as I became a better fisherman. This caused me to loose some of my passion for the sport and looked elsewhere to satisfy my need of discovery. That's when I took to the sport of fossil collecting. Anyways, after gaining the knowledge that Jimmy lived there, I reached out to him and told my story. Then ended with an explanation that to find a fossil on his property would be as big a thrill to me as catching a 10 # bass. His response was quick and decisive. I was granted my wish. So after just an hour at White Mound, I had to leave my caprine friends behind and make a new friendship across the road. To reach Jimmy's house required going through 2 fancy gates (Oklahomans love their gates!!) and a herd of elk. Meeting Jimmy was wonderful. The better part of 4 hours was spent on his deck overlooking a lake frequently seen in his TV shows. Conversations had never related to fishing or fossils at all!! We just had a chance to get to know each other in a personal way. Eventually, he took me around his property on a 4 wheeler showing me where he felt there could be fossils. He tried hard to make my trip a success, but after hunting at White Mound, I was intrigued with a small dig site they use to get gravel for the road. It looked very similar and I soon had a few Houston fossils to take home! Here is a photo of the two of us. Currently, I am working on a shadowbox to include this picture and the fossils I found. In closing, PLEASE do me a big favor and correct any IDs or ad identification to fossils that lack it. Visiting new sites like this can be overwhelming when the identification process begins.
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Could I have some help identifying these coral pieces which I found in Arkona? Any help would be appreciated.
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