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Showing results for tags 'cretoxyrhina'.
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From the album: Cenomanian Shark Teeth, Tambov Oblast, Russia
Lower anterior 1st Cretoxyrhina vraconensis (Zhelezko 2000). Slant length indicated by longest side.-
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From the album: Cenomanian Shark Teeth, Tambov Oblast, Russia
Cretoxyrhina vraconensis (Zhelezkoko 2000). Slant length indicated by longest side.-
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- cretaceous
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Hello everyone. These two teeth were teeth I acquired from a fossil hunter in Russia. The first tooth is a double tipped Archaeolamna sp. The second tooth is a pathological Cretoxyrhina vraconensis (denticulata according to Russian literature). I've got a lot of non-pathological Cretoxyrhina, Squalicorax, Dwardius, etc. if you guys want to see those as well.
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This was found by myself in Ellis County, TX. I believe the formation was the Atco (or at least the Austin Chalk & Eagle Ford, if I’m not mistaken). The scale is in centimeters. I can post other images if needed; these were the two I just happen to have accessible at the moment. A couple of people who saw it in person said it was Squalicorax. I have some Squalicorax that have the well-known distinctive shape, but I also know that Squalis have teeth that don’t have that angled look. I’d never seen a non-angled Squali tooth before. However, when I posted it online in a Facebook group, an experienced shark tooth collector was absolutely adamant that this is Cretoxyrhina. So now I am unsure. I am more inclined to say it is Cretoxyrhina, but I am far less familiar with vertebrates than inverts. Thank you for any help!
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From the album: Post Oak Creek
Another one of my favorites, the "ginsu" shark, so named for its sharp blade-like teeth. The largest one in the center is indeed from POC, but I bought it online.-
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Associated Cretoxyrhina (vraconensis) dentition
britishcanuk posted a topic in General Fossil Discussion
Hi, Recently, I had the good fortune to acquire this set of Cretoxyrhina (vraconensis) teeth from the Britton Fm., Texas. I have a detailed account of it’s discovery which describes almost all of these teeth being found together in an area about 18” x18”, with a few stragglers found just outside the main pile of teeth. It’s not complete, but It looks like most of the positions are represented. Some of the larger anteriors were not recovered and I suspect at least one or two positions are missing. I have arranged these teeth into positions that look close to me, but there is no doubt that it needs to be adjusted. I am hoping someone here might know something about these early Cretoxyrhina dentitions and might be able to advise or comment on how I can make this accurate. Some other noteworthy finds recovered from the same 18” square were 2 suspected Cretoxyrhina vertebrae, 5 small Squalicorax (falcatus) teeth, a possible Archeolamna tooth, another very small unidentified cusped shark tooth, and some small fish vertebrae and bones. Thanks for looking. R~- 7 replies
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Early Cretoxyrhina (vraconensis) dentition question
britishcanuk posted a topic in General Fossil Discussion
I’m wondering if anyone has put together a dentition of an early Cretoxyrhina with narrow lower teeth and cusped laterals and posteriors. If you have photos of something like this I would very much appreciate seeing what one looks like. Thanks in advance! R~- 5 replies
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Hey y'all, this is a shark tooth I found a couple months ago in post oak creek. I initially thought it was a cretodus, but now I'm having second thoughts. The 4th and 5th pictures are cretoxyrhina vraconensis and dwardius woodwardi, respectively. Thanks!
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From the album: Post Oak Creek
I found less stuff than last time, but I found a nice centrum and a shard of a mosasaur tooth. A couple teeth grouped with Scapanorynchus may be Serratolamna sp.- 1 comment
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- cretolamna
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From the album: Cretaceous Shark Teeth
Beautiful and very small, cusped Cretoxyrhina mantelli from Ryazan Region of Russia. Cenomanian in age.-
- cenomanian
- cretaceous
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From the album: Cretaceous Shark Teeth
Beautiful and very small, cusped Cretoxyrhina mantelli from Ryazan Region of Russia. Cenomanian in age.-
- cenomanian
- cretaceous
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From the album: Cretaceous Shark Teeth
An extremely rare Cretoxyrhina mantelli w/ cusplets from a new site in Morocco.-
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From the album: Cretaceous Shark Teeth
An extremely rare Cretoxyrhina mantelli w/ cusplets from a new site in Morocco.- 4 comments
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From the album: Cretaceous Shark Teeth
Cusped Cretoxyrhina mantelli from Kansas-
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From the album: Cretaceous Shark Teeth
Cusped Cretoxyrhina mantelli from Kansas-
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From the album: Cretaceous Shark Teeth
Cretoxyrhina mantelli from Mississippi.-
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From the album: Cretaceous Shark Teeth
Cretoxyrhina mantelli from Mississippi.-
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From the album: Cretaceous Shark Teeth
Waco, Texas Cretoxyrhina vraconensis. Albian in age.-
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From the album: Cretaceous Shark Teeth
Waco, Texas Cretoxyrhina vraconensis. Albian in age.-
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From the album: Cretaceous Shark Teeth
Small Cretoxyrhina mantelli from Mississippi-
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From the album: Cretaceous Shark Teeth
Small Cretoxyrhina mantelli from Mississippi-
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From the album: Cretaceous Shark Teeth
Cretoxyrhina mantelli from Mississippi-
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From the album: Cretaceous Shark Teeth
Cretoxyrhina mantelli from Mississippi-
- cretaceous
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From the album: Cretaceous Shark Teeth
An interestingly shaped Cretoxyrhina mantelli from the Ryazan Region of Russia. Cenomanian in age.-
- cretaceous
- cretoxyrhina
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From the album: Cretaceous Shark Teeth
An interestingly shaped Cretoxyrhina mantelli from the Ryazan Region of Russia. Cenomanian in age.-
- cretaceous
- cretoxyrhina
- (and 4 more)