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Showing results for tags 'upper triassic'.
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A speciment recently found in Argolis region of Greece . Upper Anisian - Carnian acording to the scripts but most probably Carnian (lowermost Upper Triassic)
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Spiny bivalve from Upper Triassic limestone at Aust Cliff, Gloucestershire, UK
Georyx posted a topic in Fossil ID
Hi everyone, First time posting here so please forgive any dodgy formatting. I found this bivalve shell in the Upper Triassic limestone beds at Aust Cliff, Gloucestershire, UK. I posted this on Reddit and only one person managed to have a guess at a Ctenostreon bivalve genus, but they are not sure. The spines on the edge of the shell seem a bit too evenly-spaced out in my opinion. (By the way, the grooves surrounding the shell are from where I've engraved the fossil a little. I don't have the equipment to fully extract it, so I have no idea what the outside of the shell looks like). Thanks all - any help would be appreciated. - Georyx -
Hi all, I recently acquired the below fossil, a pair of articulated jaws, purportedly from Pachystropheus rhaeticus, still with teeth, found at Garden Cliff/Westbury-on-Severn. Whether I wasn't paying proper attention when I bought it or just hoping there wouldn't be any pyrite on the piece, when I received the specimen it turned out that there are quite numerous pyrite-crystals growing to the side of the fossil. As it's quite an unusual piece that I'd rather like to keep, I'm now looking for people with experience with pyrite from the Garden Cliff location. In essence, I'd like to ask how stable the pyrite from this location typically is: whether it decays into a black oxidation product or starts blooming with time. How concerned should I be about the stability of this piece? The pyrite itself looks relatively clean right now, so I'm thinking the rock on which the fossil sits hadn't been exposed for too long. But any advice would be welcome. @Welsh Wizard @Pterygotus @DanJeavs
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- garden cliff
- jaws
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Collected on private property owned by Larry Martin.
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- bull canyon formation
- new mexico
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From the album: alpine triassic Ammonoids
Discotropites sp. from Triassic/upper Carnian "Hallstatt" limestone. Zone of Tropites subbullatus/Tuvalian II. -
From the album: alpine triassic Ammonoids
Upper Triassic/Carnian/ Austriacum Zone, Mojsvaroceras cf. perarmatus or Pleuronautilus sp. with Monophyllites simonyi and non det. bone.- 2 comments
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- carnian
- nautiloids
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I have two Triassic coprolites from the Bull Canyon Formation, Quay County, NM. The first one has an impression/imprint that I have not been able to identify. The second has a protrusion sticking out of it. I had hoped that by prepping out the the protrusion, I would get lucky and it would match up with the marks on the other. Unfortunately, I now have two things that I can't identify. @Carl 1. Is there anyone out there that wants to take a stab at identifying the imprint in this one? It does appear that there are some remnants (white) of whatever it was that made the marks.
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- bull canyon formation
- coprolite
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The location where this was found contains both aquatic and terrestrial animals from floodplain habitat. In this coprolite, a small tooth plate impression with residual fragments can be seen on the surface. Since a similar tooth plate was not found within the coprolite itself, it is unclear whether this is an undigested prey remnant or if it was embedded upon deposition. An unidentified bone and numerous fish scale inclusions were revealed using X-ray computed tomography. This specimen was scanned in April 2016 by the University of Minnesota X-ray Computed Tomography Lab using a X5000 high resolution microCT system with a twin head 225 kV x-ray source and a Dexela area detector (3073 x 3889 pixels).
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- bull canyon formation
- carnivore
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Mojsvarites agenor(MUENSTER)left side, and Pompeckjites layeri(HAUER)
andreas posted a gallery image in Member Collections
From the album: alpine triassic Ammonoids
Mojsvarites agenor(MUENSTER) and Pompeckjites layeri(HAUER) from the Hallstatt limestone of Austria. AGE= Upper Triassic/ Carnian/ Julian/ Aonoideszone -
From the album: alpine triassic Ammonoids
The ammonoid with nodes in the upper middle of the pic is most probably a member of the genus Traskites or Stantonites. It is associated in this location with cf. Clydonites daubreei, Arcestes sp., Megaphyllites sp., Paratropites sp., Pinacoceras rex, Parahauerites sp., Pamphagosirenites sp., Sirenites sp., ? Anasirenites sp., Isculites cf. heimi, Clionites sp. and a Trachysagenites sp. showing a weak venterfurrow similar to Neoprotrachyceras oedipus of the uppermost Julian. Therefore I range this fauna with some little doubts to the lower Tuvalian dilleri zone.- 3 comments
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- Tuvalian 1
- Upper Carnian
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I am happy because I ve just finished prep work of an upper Carnian ammonoid block. The block was found in spring this year (2013). It was prepared from the downside. Prep time is about 40 hours. First pic is the rough block. It looks unspectacular because it was a dry day and the real colours of the limestone can not be seen. After washing its red and grey colour is visible. During prep work I took of some limestone parts and ammonoids to reach the fossils below. Unfortunly a fault runs through the block. You can see the dislocation of the bigger horizontal laying orthocone nautiloid. Therfore the uppermost ammonoid and the small nautiloid nearby needed a little restauration. (resplit, dislocate and glue again) The block shows a typical tethydial ammonoid fauna of the uppermost aonoides zone/Carnian/Upper Triassic. On the backside of the slab the marly horizon of the uppermost Julian, Carnian Pluveal Event starts.
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