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Showing results for tags 'triassic'.
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Can anyone help me with the classification of this Triassic fossil?
AkerCS posted a topic in Fossil ID
Hi. They were found in Muschelkalk facies of Ladinian. Bony remains of nothosaurs and placodontos appear in the area. In a book they appear classified as placodontos teeth, but I would like to specify more. Thank you.
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A very well preserved herrerasaurid dinosaur, Gnathovorax cabreirai is described in the attached paper. For us collectors it gives us clues around Carnian age teeth. Unfortunately most of the teeth available to collectors are Norian or earlier in age. https://peerj.com/articles/7963/ Unfortunately the paper does not do a great job describing the teeth, here is what we have: "All tooth crowns are blade like, caudally curved and labiolingually compressed. The premaxillay and dentary teeth lack serrations in their mesial margins. However, in the distal margin there are small serrations that form a right angle with the main axis of the tooth. In the maxillary teeth the serration occur in both margins."
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Staurikosaurus tooth. Measuring 3/8 inch. San Miguel, New Mexico. Triassic .
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Here is an interesting vertebrate with a very long neck. It meaaures 6.5 inches 16.3 cm around curve. The Keichousaurus Hui from Guanglin, Guizhou Province, China. The formation is the Huixia beds and is preserved on a one inch thick limestone plate with no cracks.
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- china
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L.S., Thought it would be fun to share this "chance encounter" I had at a mineral show. The photograph below shows a slab of petrified wood from the Triassic of the Isalo II Fm. of Madagascar. When material from this locality is offered for sale (which happens often and in large quantities), it is usually labelled as "Araucarioxylon" or simply as "petrified wood" (where the latter may actually be better). While most of the wood indeed has an "Araucaria-like" anatomy (see Rössler et al. 2014 for a recent discussion on the nomenclature), I recently was lucky enough to "find" something else. While the left-most photograph may not directly show it, the anatomy of this particular slab is quite different from the common Araucaria-like specimens. I tried to clarify the anatomy by contouring the main structures seen, which hopefully makes visible how this wood consists of multiple rings of perimedular bundles and wedge-shaped structures, showing both centripetal and centrifugal xylem (inward and outward growing regions, per as provisionally indicated by the blue and red arrows). This curious growth form (by modern wood standards, at least) is characteristic for the stems of some groups of Mesozoic seed ferns, such as those from the Umkomasiales order. The best-known genus with this type of anatomy is probably Rhexoxylon (see Archangelsky and Brett 1961), but there are more similar genera, making it difficult to arrive at a more specific identification.
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- madagascar
- petrified wood
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This is said to be a Triassic fossil coral from Guizhou, China. Any idea if it is a fossil coral and what species it probably is? Thanks.
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The dinosaur graveyards of the Eastern Cape Province. Karoo Supergroup, South Africa
Oxytropidoceras posted a topic in Fossil News
Exploring the dinosaur graveyards of the Eastern Cape A chance discovery by a local shepherd has lead to a major scientific research program involving palaeontologists from South Africa, the UK and the US in the Karoo Basin. The area is proving to be one of the richest localities for vertebrate fossils in South Africa. by David Paul Ford, Oct 03, 2019 https://natureecoevocommunity.nature.com/users/317374-david-paul-ford/posts/54340-exploring-the-dinosaur-graveyards-of-the-eastern-cape Yours, Paul H.-
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- dinosaurs
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Looks like a fossil branch perhaps. About three inches long. Ends appear to be porous. Pretty much looks like a small log. I
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Scientific integrity in education and end Permian extinction
Oxytropidoceras posted a topic in Fossil News
Part 1 Scientific Integrity in Education; Part 2: “The Great Dying” – end Permian extinction John Geissman, University of Texas at Dallas Geologists of Jackson Hole https://www.youtube.com/watch?v=2nYTuDP54ZI Yours, Paul H. -
Found more tracks! Been digging out and flipping these big chunks of rock since all the tracks are on the underside. I stand corrected on my loose amateur term dinosaurs - archosaurs is the correct term.
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- 210 million years
- archosaurs
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Just found these today. Two different slabs about 4 feet long. Some closeups of one of them.
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- arizona
- chinle formation
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From the album: Odd and Rare Shark Teeth
Upper Triassic Hybodus minor from Gloucestershire, UK. Westbury Formation. Very difficult to find hybodontids with roots still in tact. -
From the album: Odd and Rare Shark Teeth
Upper Triassic Hybodus minor from Gloucestershire, UK. Westbury Formation. Very difficult to find hybodontids with roots still in tact. -
Just a question regarding the resin transfer method. I’m looking at a Keichousaurus fossil that I am considering purchasing. While the fossil looks good the seller has stated that the matrix was very unstable and he utilized the resin transfer method to stabilize the matrix. How effective is this method? The matrix looks very thin to me and any inquiries have gone unanswered. I do not have any photos of this specimen but I can direct anyone interested via pm to the very popular site the specimen is selling on. If that’s not a violation of forum rules. Thanks.
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Mercer County, New Jersey, USA. Hello, I recently found these two specimens and was wondering if they look good for Triassic tracks. If so, I heard they are very difficult to attribute to a certain species but any information or leads on that would be greatly appreciated (or should I just stick to the Cretaceous streams ). Note - these are NOT from the spot I found my last trackway (#5 on link below), I've just been obsessed lately with finding similar spots close to home. As always, all help is greatly appreciated! -Frank
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- new jersey
- tracks
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The remains of a muddy area.
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- arizona
- moenkopi formation
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Found these in East Central Arizona. A deep wash has cut through a rock ledge containing lots of the footprints. Still working on trying to get some of the bigger rock slabs hauled out.
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I recently visited Aust Cliffs by the River Severn in Bristol, UK. I believe the fossils are almost entirely Triassic, as the other layers aren't fossiliferous. These were found in broken blocks on the foreshore but most likely originated at the Rhaetian Penarth series at the top of the cliff, as this is where the bone beds are found. I can post more photos if needed, however these are the best I could get at the time on my phone. Any help would be appreciated #1 #2 #3 The black piece is hard and shiny if that helps #4 The shiny part is just over 5mm long. It looks like scales on a fish? Due to the size this is the most I could zoom in while keeping it in focus. #5 This is in a much larger block but the fossil is about 15mm long. Is it bone?
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- aust cliffs
- bristol
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http://artdaily.com/index.asp?int_sec=11&int_new=116226#.XWQllUcwjIU Short video (in Spanish) https://www.presstv.com/Detail/2019/08/24/604300/Paleontologists-Mammal-Squirrel-Film-Ice-Age
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From the album: Odd and Rare Shark Teeth
Fully rooted Polyacrodus polycyphus from Germany. Late Triassic in age. -
From the album: Odd and Rare Shark Teeth
Fully rooted Polyacrodus polycyphus from Germany. Late Triassic in age. -
From the album: Triassic vertebrate fossils
A 3.5 cm long Nothosaur vertebra from a triassic "Bonebed" in a quarry in southern Germany (Baden-Württemberg). Two more pictures: -
From the album: Vertebrates
Saurichthys dawaziensis Wu et al., 2009 Middle Triassic Dawazi Yunnan PRC together with other unidentified fish -
Best Places to Find Fossils on West Coast of England/Wales
its.just.alec posted a topic in Questions & Answers
I am leaving shortly to spend just over a week in England, more specifically in the Liverpool area, and will be taking a day trip along the coast of Wales to Rhyl as well. I've done some basic research and found that Liverpool sits right on top of Triassic bedrock, and Rhyl on top of Permian bedrock. Are there any sites that would be within my realm to visit and collect at? If so, are there any rules and regulations that I, an amateur from outside the country, need to know about before I go? If there are none, are there any noteworthy shops that I may be able to visit where I can buy some local specimens? I enjoy bringing home a fossil from my trips each time I travel somewhere, the more local the better. Thanks in advance! -
From the album: Vertebrates
Besania micrognathus Brough 1939 Middle Triassic Besano Italy
