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Showing results for tags 'cretoxyrhina'.
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From the album: Post Oak Creek
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I've recently become very interested in the sharks of the Cretaceous. The largest of all sharks during this time period was supposedly Cretoxyrhina mantelli, or the "Ginsu Shark". It likely would've highly resembled the modern Great White. I looked up a few images of their teeth, but I was wondering if anyone who hunts the Cretaceous here on the forum has any of their own? If so, I'd love to see them! Hoppe hunting!
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While my prime focus is essentially learning how to accurately describe Nature in the precise language of mathematics, I've always been intrigued by natural history - it's actually what started me on the path to physics. The sort of interrogation that paleontology practices provoked me to think and question even further, down to the fundamental science which makes it all work. Collecting fossils has brought a large amount of enjoyment to my life, and is often a welcome distraction from what can sometimes be straining work. The knowledge that I accumulate along the way is also part
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Hey guys, I've been off the radar for awhile .. work you know .. been working on Siggraph for those of you who are familiar with software development. Just wanted to start a new topic here .. This one is right at 3.00" - 7.62cm C. carcharias Bahia Inglesa Formation South of Caldera Provincia Copiapo III Regio de Atacama Chile
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I have here two shark teeth from the Cretaceous of Texas that I'm hoping to ID. #1: Dwardius ?woodwardi? The first tooth below is from Dallas, TX, from a buffer zone between the Eagle Ford and Woodbine formations (i.e., late Cretaceous, ~90-96 mya). I previously posted this tooth in the mailbox score thread and the @ThePhysicist tentatively IDed it as Dwardius (woodwardi?) but recommended posting it in the ID forum. I'm finally getting around to doing that! This tooth measures 25 mm on the slant.
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A Kem Kem Leptostyrax for Cretoxyrhina ?
fossilsonwheels posted a topic in Member Fossil Trades Bulletin Board
I need a few more Cretoxyrhina for the display I’m trying to finish. I really do not want to spend money so I’m trying a trade. I recently got some rare Kem Kem Lamniformes teeth and can offer up a Leptostyrax. It is the largest of those I got at 2.6 cm. There is some matrix on the root but the tooth is in pretty good shape. I would consider teeth from any location but my preference would be a location I don’t have such as New Mexico or Alabama. PM me if you’re interested -
In need of advice for finding shark teeth and vertebrate fossils in shoal creek
Jared C posted a topic in Fossil Hunting Trips
Hey guys, I live in Round Rock, about 25 minutes north of Austin and I've been dying to find some shark teeth in the area. Recently I found my first shark tooth in Waco, but that hour and a half drive was only induced after many failed attempts locally. As far as I understand, (and if I'm wrong, please correct me!), one's best bet of finding shark teeth (or even mosasaur teeth/verts) locally is in shoal creek in Austin. More specifically, I've heard about shark teeth turning up in Northwest park, which shoal creek runs through. My brother and I have spent long hard hours looking in -
Identification: ginsu teeth have broad lingual dental bands, rounded root lobes, a strong lingual protuberance in the roots of anterior teeth, smooth crown faces, and no nutrient groove. Notes: Has damage on the lingual side, perhaps a self-inflicted gash as the tooth fell out of the mouth. Otherwise, a perfect tooth with a very sharp point.
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- niobrara formation
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Where to get started in finding Central Texas teeth and bones
Jared C posted a topic in Questions & Answers
I'm a newbie who lives in the Austin area with a lot of passion for ancient life, but I'm having trouble making a decisive start with with my searches. I have a particular interest in large western interior seaway predators, most notably xiphactinus, but also the mosasaurs and sharks that lived in the area as well. Finding a vertebrae, of perhaps even teeth from these groups would be absolutely wonderful, but of the few creeks in the Austin area I've scouted, I've been able to turn up nothing besides gastropods. This is still despite heavily studying the sometimes confusing Texas geological ma -
Earlier this year I bought this case from IKEA for about $60. Then I added some LED lights and a few nice fossils. Check it out: Top row is basically the "ferocious fish" level Next down is the Tylosaurus / platycarpine mosasaur level Then the Cretoxyrhina level And a Pteranodon wing cast I made Overview of the four layers: Top level: Xiphactinus and Protosphraena. Note embedded tooth on r. Xip vertebra.
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Hi all. I have just joined the forum so sorry if I get anything wrong! This fossil is a (I think) Cretoxyrhina shark tooth embedded in a giant ammonite. I found this on Hunstanton cliffs and it is from the Cretaceous deposit of the ferriby chalk formation. I have heard that these kinds of fossil records about prehistoric shark's diets were reasonably rare and can be of scientific interest. I was going to contact the natural history museum of Oxford if it is but couldn't find out how to so I decided to come to you guys first. The tooth is 1cm in length and the ammonite is 38 cm (15 inches).
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From the album: Post Oak Creek
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- cretolamna
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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 ther- 6 replies
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From the album: Post Oak Creek
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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. -
From the album: Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia
Cretoxyrhina vraconensis. I believe this is a lower anterior, but I could be mistaken. -
From the album: Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia
Cretoxyrhina vraconensis (C. denticulata according to Russian literature). I believe this is an upper anterior. -
Sold as Cretalamna, it is from the Tambov Region of Russian. Cenomanian. I found this to be an interesting tooth though I am not convinced the ID is accurate. @Chase_E has a gallery of teeth from this region and a couple of other locations from Cenomanian Russia. Using those posts as a guide, I believe the tooth may be a Cretoxyrhina, perhaps C. vraconensis. I see quite a bit of similarity with a couple of Chases teeth but I am using one as comparison in this post. I could be, and probably am, wrong about that assessment lol Any input is welcomed !!
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I’ve been working on getting all of our shark teeth properly identified so I went back to a few teeth from the Demopolis Formation. These are from the Frankstown location in Mississippi. The first one up is right around 1” and the little cusps are what initially confused me. Is this a Cretoxyrhina perhaps? I found some images of Cretoxyrhina with cusps that looked similar.
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From the album: Cretaceous Shark Teeth
Mississippi Ginsu shark tooth w/ cusplets. -
From the album: Cretaceous Shark Teeth
Mississippi Ginsu shark tooth w/ cusplets. -
From the album: Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia
Cretoxyrhina vraconensis (Zhelezko 2000). Slant length indicated by longest side. -
From the album: Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia
Cretoxyrhina vraconensis (Zhelezko 2000). Slant length indicated by longest side. -
From the album: Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia
Cretoxyrhina sp. (Glickman 1958). Slant length indicated by longest side. -
From the album: Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia
Cretoxyrhina sp. (Glickman 1958). Slant length indicated by longest side.
