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Showing results for tags 'Triassic'.
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Found this not far from the other footprints. This is sandstone. I can’t really tell for sure.
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- arizona
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Hi guys, I normally collect only bones but in the layers where I collect them, coprolites are also often abundant. But mostly they are not very well preserved so I don't take them with me. This one is the best one I found so far and I wonder if it might be possible to find out which animal "produced" it It comes from the so called "Grenzbonebed", which is a triassic layer between Muschelkalk and Keuper. Its approximately 4 cm long. It would be great if someone can help here. Maybe @GeschWhat? My personal guess would be that it comes from a fish (maybe shark)... Thanks and stay healthy!
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Good morning folks. I have a plate containing two of what I 'believe" to be Triops longicaudatus specimens. I purchased it from China years ago and it was listed as "tadpoles from China". My research leads me to the Triops species, am I correct? If not, please point me in the right direction. The largest specimen measures 9cm x 4.2cm. Help......
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I recently purchased a small lot of Bull Canyon Formation, New Mexico teeth, most of which were Phytosaurid. Then i noticed this tooth and how eerily similar it is too Pterosaur teeth from Morocco. From what i've read, there have been documented Eudimorphodon fossils collected from the Chinle Group, however i cannot find pictures for comparison. The closest teeth i can find from New Mexico are Preondactylus and Peteinosaurus teeth that have been put up for sale on multiple websites, though the information provided with them is unhelpful. I've included a photo of the "front", "back" and a side profile of the tooth. If clearer photos are needed to assist with identification, i can get some taken and uploaded.
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- bull canyon formation
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Red shale by flat run creek. Is it a skull? If so any help identifying appreciated.
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The old Granton Quarry site, located in North Bergen, New Jersey was a working quarry that has produced fauna from the Upper Triassic Lockatong Formation part of the Newark Super Group. Underneath a basalt cap, in beds that are tilted, are shales and sandstones deposited in an ancient tropical lake bed. Biodiversity is far from rich. The most common vertebrate fossil found is Diplurus newarki, a small coelacanth, usually 2-4 inches in length. Other fossils include Estheria ovate, a clam-shaped shrimp-like crustacean. Rare remains of reptiles have also been found at the site. Development has claimed most of the quarry site, but an outcrop remains in an area that is unfortunately a repository for trash and graffiti and infested with poison ivy. Because of the poison ivy winter is the only time the site can be visited. I've been visiting the old Granton Quarry site once or twice a year since 2013. I've brought a number of TFF members to Granton, but Tim (fossildude19) has a been my companion for almost all of those trips since the first one. Last Sunday, the weather was mild and Tim and I accompanied by TFF members Dave (Shamalama) and Paul1719 visited once again. The site, always a difficult one to work, is becoming more challenging. The cliff is, I estimate 40-50 feet tall, but it is a less than one inch wide bed of black shale (called G-7) that is very fossiliferous. That bed is generally flush with or indented into the wall. All of the easily accessible G-7 has been already dug out. Where it is exposed and weathered it tends to splinter into fine shards obliterating any fossils that might have been present. Deeper in the wall it incredibly hard. Pulling out a decent size chunk to split is difficult to say the least. Finding a few already started cracks I was able penetrate deeper using my sledge and long chisel. Then I used my crowbar to wedge them out. In a full day of digging I was able to wedge out two chunks of G-7 , each several inches across. From these I got the majority of specimens I found. One piece appears to have two complete or nearly complete Diplurus which I sent to Ptychodus 04 in Texas to prep. In addition to fossils, Tim found a live red-backed salamander, our first amphibian siting of the spring. Here's Tim:
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- coelacanths
- lockatong formation
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Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to commonly observe the item of interest; paler orange indicates times in earth history to less commonly observe the item of interest. White indicates very little to no practical probability of observing the item of interest. Please keep in mind that the listed indicators are things like “conspicuous horn corals,” purposefully declining to address rare encounters with groups of low preservation potential, low recognizability, etc. Got additions/amendments, especially for the groups mentioned above? Toss them in the comments below! Thank you..... https://docs.google.com/spreadsheets/d/1tVm_u6v573V4NACrdebb_1OsBEAz60dS1m4pCTckgyA- 5 replies
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- algae
- ammonoidea
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Good morning folks. I purchased this box of coprolites many years ago under the description "Triassic carnivore fossil dinosaur coprolite, New Mexico". Did I do good or did I get taken?
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Looking For An Expert/Specialist In Triassic Reptile/Amphibian Remains
Kurufossils posted a topic in General Fossil Discussion
I'm not to sure if is the right part of the forum to be asking this but is anyone or would anyone know any experts/specialists that have a focus in Triassic Reptile/Amphibian Remains? Can even be a recomendation of an email address for a specific paleontologist I would be able to contact in regard to discussing a specimen directly and privately. -
I will trade these fossils for one well preserved European goniatite or European triassic ammonite (specimen with 5 to 8 cm preferentially) because that kind of specimen is lack in my teaching collection. Note the Anorthopygus orbicularis is not a common species and, apart the incomplete test, has an exceptional detailed preservation, rarely seen. Best regards, Ricardo Traded
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- ammonite
- anorthopygus orbicularis
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Last weekend I went to the south, to the area of Chrzanów - I have tried before twice to get to the Płaza quarry, but it is impossible during the week, as it is an operating facility, so I needed to visit it on the weekend The weather was beautiful - it felt almost like spring. Looking at the pictures you would not tell it's the middle of winter here:
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This paper came out today. For those who saw my post of the palm leaf in both Alaska and the Smithsonian... this explains what I was doing in Fairbanks. I was up there for a total of five weeks stretched out over five winters. Yes, Winter in Fairbanks. I was hoping to see minus 40 degrees, but it never quite made it. I am "a fossil preparation specialist worked in two-week stints over the course of several years to get the fossil cleaned up and ready for study" https://news.uaf.edu/new-thalattosaur-species-discovered-in-southeast-alaska/?fbclid=IwAR0f-Lg4vDgE5MVuxP7wOL1V_CV3v142uy7Y9slvyNdH-xfE0t0AiZpp5Uw There is a paragraph about it Kirk Johnson and Ray Troll's latest book... "Cruising the Fossil Coastline"- 10 replies
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- alaska
- thallatosaur
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Turned this approx 4 sq. ft. rock over today. Lots of footprints and a nice tail drag.
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- arizona
- footprints
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A nice set of chirotherium.
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- arizona
- chirotherium
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Turned over this large rock this morning. Covered in small (1-2”) three toed footprints.
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Don’t know what this print is. Doesn’t look like the chirotherium. Found it today.
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From the album: Triassic vertebrate fossils
A 13 cm long stone with three nothosaur vertebrae and another unidentified small bone piece from a triassic "Bonebed" in a quarry in southern Germany (Baden-Württemberg). The verts are very small, especially the one beside the bone fragment. The bigger ones are about 2 cm long. Detailed pictures: -
Finally some nice weather to do some digging. Couple more single prints. Got a crane to start moving the big slabs with multiple prints!
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Genuine keichousaurus?
DawnOfADream posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello everyone! I found this keichousaurus listed on online. It appears quite legitimate. Could you please look at the photos provided and let me know whether you think it is a legitimate specimen? Many thanks.
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- genuine
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From the album: Triassic vertebrate fossils
A nicely preserved 3 cm long Nothosaur tooth from a triassic "Bonebed" from a quarry in southern Germany (Baden-Württemberg). -
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From the album: Triassic vertebrate fossils
A 20 cm long stone with a couple of bones from a triassic "Bonebed" in a quarry in southern Germany (Baden-Württemberg). On the plate are two vertebrae, one rib and two unidentified bones. The quality of the bones is partly not good (especially the vert in the middle is bad preserved). The prep was not too difficult but it took quite a long time to finish it. Some more pictures: -
From the album: Triassic vertebrate fossils
This is a 12 cm long Hybodus fin spine from a triassic "Bonebed" in a quarry in southern Germany (Baden-Württemberg). Its until now my best preserved fin spine from there. Some more pictures: -
Good morning forum. Can anyone tell me if this fossil is fauna or ????? It's from the early Triassic, lower Muschelkalk, Libiaz, Poland. Matrix is 70 x 50cm
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Keichousaurus or an impostor
Yan11 posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hi, In 2013 I bought a keichosaurus fossil from online , and since then I haven't thought much of it, after me and my mum and dad moved to a new apartment the fossil got somewhat forgotten, but today I tried inspecting it. I read some of the treads here but even with this I can't decide if mine is a real or a fake one. From what I have gathered there aren't many outright fakes, but more so real ones that are enhanced. I will be glad to hear your opinion on the pictures (sorry for the poor quality but I had to use my phone). Any response will be very much appreciated. Best regards to everybody.
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Dear members, It’s time for another “review” of a palaeontological site I had the pleasure to excavate in. However this one is quite different from the others I already posted about: those were outcrops in Ohio, USA, where you could collect fossils freely or by signing a disclaimer. This time, instead, I had to operate alongside the institution that holds the concession to excavate and study the material. For fifteen days in August 2019 I excavated in the Late Triassic beds of Krasiejów, southwestern Poland, alongside the Institute of Paleobiology of the Polish Academy of Sciences, based in Warsaw. It is not the only “official” dig that I took part in, but, alas, the only I’m allowed to post pictures of! Krasiejów’s site has been exploited for the extraction of clay since the beginning of the XX century until 2002; the first scientific excavations took place in 1993 and the first publication was issued in 2000. Since then dozens of students and palaeontologists from all over the world have visited the site. The assemblage dates to the Late Triassic, but a more precise dating (Carnian or Ladinian) has not been assessed yet. Back then Poland was situated much southern on the Northern hemisphere, under subtropical conditions. Rivers formed extensive backwaters and swamps, separating islands from the dry mainland. Occasionally, intensive rainfall led to flooding that washed out skeletal remains and transported them to their final site of burial. Bones were then scattered and damaged, but rapid deposition led to their preservation. Krasiejów can therefore be classified as a Konzentrat-Lagerstätte. A section of the Bonebed is open to the public and it’s a truly mind-blowing sight! Dozens of skulls, mandibles and isolated bones of amphibians (later I’ll tell you exactly of which species) can be seen lying there since 220 million years ago. I pictured a small section of the bonebed, circling in yellow the skulls and in red the mandibles. The lithotypes that make up the outcrop are red claystone and grey pelites. Tools needed for excavating are geological hammers, pickaxes and shovels. That's what an usual day on the site looked like: The flora and invertebrate assemblage is not very rich: conifer cone scales and branches, freshwater bivalves and small arthropds. Fish were scarce and poorly preserved. In the case of lungfish, instead, toothplates were common: The most interesting aspect is represented by tetrapod bones: they are countless, even in my wildest dreams I could not have hoped of finding so many as I have! Metoposaurus was a temnospondyl amphibian characterized by a dorsoventrally flattened body up to 2 m (6,5 ft) long. Its bones are the most common remains in Krasiejów. It probably lived at the bottom of shallow-water reservoirs, as ambush predator hunting for fish and other small vertebrates. For air it had to resurface regularly, but it may not have been able to enter land. The bones on the bonebed belonged to it. Here you can see a close up of a mandible ramus from two perspectives, two ribs, a vertebra and interclavicle. Ciclotosaur, another temnospondyl amphibian, hunted on both water and land. It’s not easy to differentiate its bones from those of Metoposaurus on the field. Paleorhinus was a phytosaur, a 3,5 m (11,5 ft) long semi-acquatic predator superficially resembling a gavial. I have found a couple of teeth that belonged to it. Stagonolepis was a herbivorous, 3,5m long archosaur with a heavily armoured body. Its skull was small and equipped with conical teeth and a horny beak on the mandible and a fleshy snout on the upper jaw. It may have used them to dig food out of the ground. Osteoderms and teeth (not pictured) were rather common. We also found a femur of Stagonolepis: And a bone of the hind limb, that in order to be extracted and protected was covered with a field jacket of gypsum: Finally, a rauisuchian and dinosaur species make up the assemblage, but we didn’t find any of their bones since they are extremely rare. If you'd like to know more about Krasiejów, I suggest you to read these two papers: - Gruntmejer, K., Konietzko-Meier, D., & Bodzioch, A. (2015). The Triassic world of Krasiejów. FIELD GUIDE, 17. - Dzik, J. and Sulej, T. 2007. A review of the early Late Triassic Krasiejów biota from Silesia, Poland. Palaeontologia Polonica 64, 3–27. Well, that’s it! This excavation was an incredible experience for me, I met some great people and found amazing fossils! I hope you enjoyed and leave a comment if you have any question for me!! Fabio
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