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Showing results for tags 'devonian'.
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Middle Devonian Fossils - Swatara State Park (Pine Grove, PA)
Masonk posted a topic in Fossil Hunting Trips
Hi All, Took a trip last weekend to break rock @ Swatara State Park. Formation is Mahantango, however as I understand, the material itself is a roadcut transplant from nearby I-81. Spent about 5 hours looking and did fairly well overall. Main goal was trilobites (have yet to find any personally - goal achieved). Highlight is a possible Phyllocarid (suggested species - Echinocaris). I've attempted to ID mostly everything, however please feel free to correct me as I'm still learing. Few photos from the site: Looking down from atop the formation In situ Brachiopod - Cyrtina hamiltonensis? Brachipod?, Mucrospirifer?, Unsure of the 3rd photo. Coral and Sponge have been suggested. Possibly Receptaculites? Or maybe Bryozoan? Trilobite - Trinucleus? Trilobite - Greenops pygidum? Trilobite - Greenops pygidum? Trilobite - Greenops pygidum Crinoid stem?
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Hi All, Thought I would share some fossils I have displayed around my office as well as several display cases I've put together. Some of the items I've purchased, and handful from members on here. Majority of the items I've personally collected. I just started in May 2023, and so far have been able to hunt for fossils from the Ordovician to the Pleistocene, in 6 different states. Thanks for looking! Few photos of the office setup. Hoping to eventually put into a display cabinet.
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we have got some very nice trilos last time, most I know but this tiny ones (approx. 1 cm / .4 ") I have never had. My net-research gives Destombesina, what do you think? Seems to be Jbel Issoumour or Jbel Oufaten when I compare the matrix thanks!
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Today I met up with some forum members for a group hunt in the Middle Devonian of Central New York. Members @Fossildude19 , his Son Aidan,@Jeffrey P, @Easwiecki, plus five of his friends, as well as @Bjohn170 and his girlfriend Amy. I think i can safely say we all had a very nice day. There were plenty of fossils, good people, and the weather was ok.ok. I was the first one to arrive, bright and early at 7am and i had a couple hoursbefore the others started pouring in. It was Bjohn170's first time doing this type of digging but he and Amy did great finding trilobites. I think they found more then anybody else. Today was a little bit of everything. Trilo's, gastro's, brach's, bivalves, cephalopod, etc... I myself found a few mostly complete Greenops sp. One was the most complete one I have ever found, and nice preservation. I am hoping that everyone who participated in todays hunt will, when they have time, respond and possibly post their finds. I will post my trilos and a few other things but I will start by posting a pic of Bjohn170 (Bryce), with his first ever Trilobite. It was the only pic I took on-site. By the way everyone,please wish Fossildude19 (Tim) Happy Birthday!
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Hi guys, i'd like to buy two Moroccan fossils but the explanations of the seller are a bit confusing for me. He told me this was an ancelecerass from the Barmien of Aourir. So i believe this is an Ancyloceras, Barremian. It is about 6 cm. The second item is a bloc with two Trilobites. The seller told me they were conihapultusse from the Devonian of Erfoud. So, i believe they are CCyphaspdae, maybe Braunops ? They are about 4 cm, including the pygidial seine. @piranha @Kane I'd like to know what you think about them guys. guys.Thank you.
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Hi All. I am heading to the NAPC meetings in Michigan in June. Unfortunately the field trips filled up fast. I am hoping to take in a little local fossil collecting in the area if possible while there (anything really). If anyone has any suggestions I would love to hear from you. If you live in the area or are attending NAPC and want to organize an informal collecting jaunt I am happy to do that too. Thank you for the help!
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The past two weeks I've been able to go out collecting a couple of times- two different locations, both Lower Devonian. Where I live the bedrock is all metamorphic. Nice scenery, wooded hills, lakes and wetlands, but metamorphic rock, so I have to drive over an hour to get to the nearest sedimentary exposures that are fossil bearing. My favorite locality that's within an hour and a half is Glenerie, which is located between Kingston and Saugerties just west of the Hudson River. It represents the type locality for the Glenerie Limestone. New York's Lower Devonian is divided into two groups: the Helderberg and the Tristates. The Tristates is the younger of the two and that's where the Glenerie Limestone is placed. I first visited the Glenerie site when I was a teenager. When I resumed fossil collecting 12 years ago, it was one of the first sites I revisited and quickly became a favorite (I lived much closer to it then.) For a while, I was there almost every week and this site was the first one I built up a collection from. As I became acquainted with other fossil sites, I visited Glenerie less often, but in recent years, inspired in part by my fossil hunting comrades, I've been going more. The Glenerie site is very rich in brachiopods which probably make up over 95% of the marine fauna. The vast majority of those are single valve. which display amazing detail in ornamentation, muscle scars, etc. Gastropods, tentaculites, bryozoans, and trilobites make up most of the rest of the fauna. Corals have been found by some of my friends on very rare occasions. I have found a single small nautiloid there as well as a partial crinoid calyx. I saw another this time, but unfortunately, was unable to extract it. The fossils are usually preserved in silica which resists the weathering that dssolves the limestone. Some of the limestone is densely packed with fossil shells. However, the rock is so hard that extracting the fossils which are actually softer than the matrix, is impossible. There are areas of the outcrop, near the top and in crevices where shells weather out complete and can often be obtained intact surface collecting. It was a good day for finding gastropods. I was able to collect a half dozen, including this one, a Platystoma ventricosa- actually two shells side by side, two and a quarter inch across.
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Over the years I have found it difficult to pass up a nice trilobite. Several were without identification or background information; I gambled that I would be able to identify these trilobites using information on the internet (images mostly). I am attaching images of those that I believe to be Devonian trilobites. I would most sincerely appreciate corrections and/or further species identification from those with more expertise. The first image is of a trilobite that I acquired at an antique store in Alaska that was liquidating an estate with a private museum. Through comparison with images on the internet, I have tentatively identified it as an Acanthopyge trilobite. The second image is of a partially entrolled trilobite that I have preliminarily identified as an Asteropyginae trilobite (through images on the internet). The third image is of a Crotocephalina gibbus trilobite from the Devonian in Alnif, Morocco. The fourth image is of a Gerastos trilobite from the Devonian in Zguid, Morocco. The fifth image is presumably a Metacantina trilobite from the Devonian in Morocco. The sixth image is presumably a Paralejurus trilobite from the Devonian in Morocco. The seventh image is presumably a Phacops trilobite from the Devonian. The eighth and final image is of a Proetus granulosus trilobite from the Devonian in Morocco. Any further information/discussion about these trilobites would be appreciated.DevMorocco.thumb.jpg.5a20b1c69ec5f63fe2fc6c9e5078ebb2.jpg)
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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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