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Showing results for tags 'cenomanian'.
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I don’t post on this forum and much as I probably should so here’s to changing that. Had quite the eventful afternoon hear in the Dallas area in the Eagle Ford. Found the most crabs I have ever found in my life, no ID on any of these but feel free to give me your thoughts. This was the first find of the day and got me stoked for what else I might be laying around this sight. Within 5ft of the first find I found another decapod. This was when I realized what I was in for, Crabapaloza! These next two were found within 2ft of each other. The next surprise was this assortment of fish bone, this is my first time finding any bone at this location and is currently the oldest bony material in my possession. Along with the visible fish bone was another vertebra not pictured and what I believe to be a small lobster or shrimp barely visible. A reoccurring theme, this carapace was found not to far from the fish bones as well For about 20-30ft of the exposure there wasn’t much, but again, I found more crab, center of palm, along with a gastropod shell and two pieces of ammonite, in this shape I typically don’t collect them but are a good example of the shape most ammonites and baculites are in. At this point things started to slow down, but again, another decapod. And again not to far from the last fossils, another crab and a decent ammonite, for the area, within 3ft of each other. And yet another decapod for the bag And at last, on my way back and on the way out, I gave a quick look behind where I inserted into the exposure and to my surprise, one last crab, including parts of its legs. I don’t get to this site too often, as it’s quite out of the way for me, (and is wishy-washy in its production rate) so when I do go, I make the most out of it - and today I can’t say I’m displeased at all.
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From the album: Woodbine Formation
aff. Terminonaris sp., North TX Cenomanian, Cretaceous Mar, 2024-
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From the album: Texas Cenomanian (Cretaceous)
Ptychodus occidentalis Uppermost middle Cenomanian Texas My most spectacular Ptychodus tooth, which I almost didn't find. I was finishing the day, and then decided to remove one last slab of sandstone before moving on. It is a decently sized tooth for the species, at 22 mm (0.87 inches) tall and 19 mm (0.75 inches) wide.- 3 comments
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The first small-bodied ornithopod dinosaur from the Lewisville Formation (middle Cenomanian) of Texas.
Oxytropidoceras posted a topic in Fossil News
The below open access paper is interesting. Tykoski, R.S., Contreras, D.L. and Noto, C., 2023. The first small-bodied ornithopod dinosaur from the Lewisville Formation (middle Cenomanian) of Texas. Journal of Vertebrate Paleontology, p.e2257238. Yours, Paul H.-
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Winter is the best time of the year for fossil hunting near the cliffs at the french coast. So like every year Natalie and I spend a few days at the "Côte d'opale" in northern France to prospect. The storms and tides cleaned up a lot of the boulders from the last cliff fals. The weather conditions were a bit harsh but we managed a few good prospections and we scored a few large ammonites.
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From the album: Texas Cenomanian Coniasaur Vertebrae
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A new genus of cretaceous 'swordfish" comes with the reassignment of two Protosphyraena species
Jared C posted a topic in Fossil News
A new genus of bill-fish like Plethodid Rhamphoichthys has been described from the Cretaceous of Lebanon and Germany. paper link: https://www.researchgate.net/publication/376263633_The_first_articulated_skeletons_of_enigmatic_Late_Cretaceous_billfish-like_actinopterygians What's interesting is that the billfish like body plan here is AGAIN convergent - Rhamphoichthys is a Plethodid, unrelated to the more famous Creteaceous "billfish" Protosphyraena (a Pachycormid). Both of these are yet again unrelated to modern billfish (the Xiphiidae). In this paper, two previously dubious species of Protosphyraena have been assigned to this new genus: P. stebbingi and P. minor, now R. stebbingi and R. minor. Pics!-
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From the album: Texas Cenomanian (Cretaceous)
Plethodid parasphenoid with teeth intact Cenomanian Texas Plethodid parasphenoids are usually found without the little teeth in place, each tooth only leaving a small pit behind instead.-
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From the album: Texas Cenomanian (Cretaceous)
Plethodid parasphenoid fragments Cenomanian Texas These bones were at the roof of the mouth towards the back, with each pit originally housing a tiny tooth-
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First biological inclusions in Upper Cretaceous Texas amber, USA
Oxytropidoceras posted a topic in Fossil News
Cifuentes-Ruiz, P., 2023. First biological inclusion in Upper Cretaceous Texas amber, USA. Boletín de la Sociedad Geológica Mexicana, 75(3), no.A091023. Boletín de la Sociedad Geológica Mexicana Yours, Paul H.-
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I seem to have lost my label for this one, but if I recall it was a Carpopenaeus (callirostris?) from Haqel, Lebanon - Cenomanian. Can anyone confirm this for me? I'm pretty sure it was from Lebanon, in any case. If any other info can be filled in also, let me know, please. Maybe my label will turn up somewhere, sometime... I know I would not have thrown such a thing out.
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Plant impressions i found in material from the Coleraine formation of Northern Minnesota, which dates to 100-90mya, i confirmed with a paleontologist that these are first known plant impressions ever found up here which has me excited but neither of us know anymore than that theyre plant impressions, can anyone here maybe give more specific information from my pictures? i hope these pictures are good enough, i donated it for further study so I can’t get more. Even if you can’t ID them i still want to know what you guys think!
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Howdy all, This is supposedly a hadrosaur tooth from the Woodbine formation of Dallas Texas that I'm very interested in. (If you know you know) Do y'all think the ID is accurate?
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possible Ichthyosaur bone form the cenomanian chalk of France.
Manticocerasman posted a topic in Fossil ID
Last weekend Natalie and I found an isolated bone in the chalk of Cap-Blanc-Nez in France. Bone fragments here are very rare, and most of the time they are from the Ichthyosaur Pervushovisaurus campylodon. So we think this might be some part of that creature altough a small one. Is there anyone who can narrow it down to a specific bone? The bone is around 3,5cm long. The age: late cretaceous, Early Cenomanian.- 2 replies
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From the album: Woodbine Formation
Leptocleidian Plesiosaur, North TX Cenomanian, Cretaceous Jul, 2023 Between Leptocleididae and Polycotylidae it is unclear which of the two sister families (both within the clade Leptocleidia) this tooth belongs to. This tooth is from marine coastal strata that would have been in near proximity to freshwater sources (see the Woodbine river delta that once existed over Grapevine Lake). Leptocleididae is known up until the Early Albian from freshwater, near shore, and brackish environments. Some possible teeth were documented from the Kem Kem river system which is similarly aged Cenomanian rock. They typically have very gracile teeth similar to this specimen. Polycotylidae is a sister taxon that extends through into much younger deposits and is regarded as a marine group. They arose in the Albian and typically have more robust morphologies, though a basal species could be gracile like this specimen.-
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I found this in material from the Coleraine formation of Northern Minnesota, which dates between 100-90mya, which was part of the east shore of the Western Interior Seaway. So far i know it’s reptilian but I’m wondering if anyone can give me a more specific identification. The exposed part is about 2.5-3cm long.
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The cenomanian sediments of Lebanon contains three Cyclobatis-species. The long-tailed C. major, the rare C. tuberculatus and the more common C. oligodactylus. One more might be possible, there is a stingray known with a very short spine, shorter than the others
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Hi all, I was recently told about supposed Aigialosaurus/aigialosaurid (mosasaurus) material from the Wealden at Bexhill-on-Sea in East Sussex, and was wondering whether anybody knows anything more about this. Because, as far as I'm aware (Wikipedia), Aigialosaurus is described from Hvar in Croatia and, moreover, temporarily restricted to the Cenomanian, whereas these remains, stemming from the Wealden, would be Early Cretaceous in age (Berriasian through Aptian) - most likely Valanginian, as they were recovered from Bexhill-on-Sea. (Image source) I must say these remains do look rather mosasauroid, although I've been unsuccessful in finding further information on the specimen, which is supposed to be housed in the Bexhill Museum. The person who first told me about them remembers having seen a newspaper article, believes the British Natural History Museum was involved with the specimen back then, and had heard about a paper being written about it. That's about all I have to go on for now. So my questions right now are: does anyone have more information on this specimen; know of the publication; and what do people here generally make of this piece: is it mosasauroid, or could it be something else? @paulgdls @DE&i @Praefectus @caterpillar @The Amateur Paleontologist @Kosmoceras @ThePhysicist @Welsh Wizard @DanJeavs
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Woodbinesuchus byersmauricei, Rush Creek
Mikrogeophagus posted a gallery image in Member Collections
From the album: Woodbine Formation
Woodbinesuchus byersmauricei, North TX Cenomanian, Cretaceous Jun, 2023 The only croc described from the Rush Creek Member of the Woodbine. Unlike most modern crocs, Woodbinesuchus had an extremely narrow snout with long teeth adapted for a diet of fish. The closest thing today is an Indian gharial. The croc teeth are apparently quite abundant at my site. Easily some of my favorite teeth ever.-
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From the album: Woodbine Formation
Onchopristis dunklei, North TX Cenomanian, Cretaceous Jun, 2023-
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From the album: Woodbine Formation
Cretodus semiplicatus, North TX Cenomanian, Cretaceous Jun, 2023 Cretodus semiplicatus is a species that inhabited shallower waters, meaning they are a common sight in the near shore Woodbine along with Meristodonoides sp. and Onchopristis dunklei.- 2 comments
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From the album: Woodbine Formation
Cretalamna catoxodon, North TX Cenomanian, Cretaceous Jun, 2023-
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From the album: Woodbine Formation
Meristodonoides sp., North TX Cenomanian, Cretaceous Jun, 2023 Surprisingly common in this pocket. I've found 3 fragments in a single hunt, this being the largest. I chose the genus Meristodonoides because those are the only Hybodontiformes teeth I've found so far.- 2 comments
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Eostriatolamia cf. E. paucicorrugata, Rush Creek
Mikrogeophagus posted a gallery image in Member Collections
From the album: Woodbine Formation
Eostriatolamia cf. E. paucicorrugata, North TX Cenomanian, Cretaceous Jun, 2023 Doesn't have a Haimirichia amonensis "look" to me which these shape teeth usually are in the Woodbine. E. paucicorrugata is typically found in colder climates, but I think it shares the strongest likeness.-
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From the album: Woodbine Formation
Pseudohypolophus mcnultyi, North TX Cenomanian, Cretaceous Jun, 2023-
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