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Showing results for tags 'carcharias'.
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Shark Carcharias taurus Sand Tiger Venice Florida
JamieLynn posted a gallery image in Member Collections
From the album: Florida Fossil Finds: Peace River, Venice, and Key West
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Shark Carcharias sp. Sand Tiger Aurora NC Miocene
JamieLynn posted a gallery image in Member Collections
From the album: Aurora North Carolina Micro Matrix Fossils
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Shark Carcharias sp. Sand Tiger Aurora NC Miocene
JamieLynn posted a gallery image in Member Collections
From the album: Aurora North Carolina Micro Matrix Fossils
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Seeking corrections and identification on shark teeth from Aurora, NC, USA (Miocene-Pliocene). Scale in mm. Thanks for any help you can provide! Sphyrna sp. (Hammerhead)? Carcharhinus sp(p). ? Carcharias sp.? Not sure. (Some kind of Galeocerdo?) Not sure. Not sure. (Carcharhinus sp(p).?
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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From the album: Fin Lover's South Carolina Finds
It's not perfect but it's rare to find one with this much root in Summerville.-
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I think I've mentioned here and there more recently that I don't go hunting all that much any more. But I still like to ride my bike just about every day. So every once in a while I get the urge to cycle up to my favorite site in the Miocene which is only about 20 km. away from home. As I did the day before yesterday. It never ceases to amaze me that teeth still pop out of this exposure which has probably been worked over many, many years. The great thing about these things is that they hardly take up much space, which is a valued commodity within my space restricted collection nowadays. I think I have a Carcharias sp. and a Carcharodon hastalis here. Please correct me if I'm wrong.
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Carcharias saskatchewanensis, Bouldin Flags
Mikrogeophagus posted a gallery image in Member Collections
From the album: Eagle Ford Group
Carcharias saskatchewanensis, Central TX Cenomanian, Cretaceous Dec, 2022-
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Cenocarcharias tenuiplicatus, Bouldin Flags
Mikrogeophagus posted a gallery image in Member Collections
From the album: Eagle Ford Group
Cenocarcharias tenuiplicatus, Central TX Cenomanian, Cretaceous Dec, 2022-
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Campanian hunters and shark experts... have you seen this shark tooth?
Mikrogeophagus posted a topic in General Fossil Discussion
Hey everyone, I've recently been interested in a weird tooth morphology I have found a couple times in the Middle Campanian Ozan of Austin. At the moment, I have it ID'd as Serratolamna cf. caraibaea based off of a paper on Aguja sharks (https://doi.org/10.1016/j.cretres.2016.08.008). My specimens seem to be a single anterior and single lateral. These teeth appear to have a nutrient groove, multiple pairs of cusplets, smooth labial and lingual faces, and a basal bulge overhanging the root. They are each about 11 mm from root to tip of the cusp. Something to note is that S. caraibaea had previously only been found in Mexico, Trinidad, and West Africa. I wonder if it's some warmer water species? I wish I could read the species's original description, but alas I have no access to the paper. (Left): Anterior tooth (L) and lower? lateral tooth (R); (Right): Anterior tooth (L) and lateral tooth (R) (Left): Labial view lower? lateral tooth; (Right): Lingual view lingual tooth I've done some digging trying to find this tooth online from places like the NSR and New Jersey, but the closest I can find is Carcharias samhammeri which I think has too many differences. C. samhammeri imo has a more pronounced lingual protuberance, only a single pair of cusplets, and no basal bulge on the labial side, and "thinner root lobes" (hard to put into words sorry). Carcharias holmdelensis has similar issues along with the presence of striations on the lingual face. Scapanorhynchus doesn't look right and neither does Cretalamna. In fact, what partly prompted me to make this post was noticing this tooth's apparent similarity to a Paleocene/Eocene taxon called Brachycarcharias lerichei. What makes the story even more interesting is its criminal history, formerly being under the name Serratolamna lerichei before the creation of Brachycarcharias of the family Odontaspididae. Brachycarcharias lerichei from elasmo.com. Note the anteriors and laterals! Brachycarcharias lerichei lower lateral from elasmo.com The genus Serratolamna itself also has some shakiness to its name. A similar taxon, Serratolamna khderii, of the Campanian in France and Jordan has a past of jumping in and out of the families Odontaspididae and Serratolamnidae. All this to say I'm beginning to wonder if there is a taxonomic connection between my specimens and the genus Brachycarcharias or at least Odontaspididae that isn't yet recognized in academia. One major issue though, is that I only have a couple of these teeth (I've got a really bad itch to hunt in Austin again, but that'll have to wait). I am wondering if any other Campanian hunters have come across something similar and has photos to share? And for the shark experts, I wonder what are your thoughts on this information? Does it pique your interest or is it a "nothing burger"? Any clarification is immensely appreciated! It's not the craziest or coolest tooth design by any means, but it's enough to keep me longing for some answers.- 8 replies
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Shark Carcharias amonensis Woodbine Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils : Sharks and Rays
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From the album: Fin Lover's South Carolina Finds
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From the album: Fin Lover's South Carolina Finds
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Shark Carcharias amonensis Eagle Ford Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils : Sharks and Rays
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Here is my shark teeth collection. photo 1 Species: Carcharocles megalodon Age: 2,6-15 million years (Miocene-Pliocene) Size: 9,5 centimeters Localisation: Georgia River (Georgia) Formation: Hawthorn photo 2 Species : Isurus hastalis Age: 9 million years (Miocene) Size: 4,8 centimeters Localisation: Copiapo, Chile Formation: Bahia Inglesa photo 3 Species: Squalicorax pristodontus Age: 70 million years (Upper Cretaceous) Size: 2,9 centimeters Localisation: Morocco Formation: Kem Kem Beds photo 4 Species: Carcharodon carcharias Age: 3 million years (Plocene) Size: 4,6 centimeters Localisation: Ica region, Peru Formation: Pisco
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***Need professional help with Paleogene/Eocene shark teeth identification***
Morte posted a topic in Fossil ID
Hello everyone!)) Need help of paleontologists and paleoichthyologists with identification of eocene shark teeth from Russia. I'm not professional, just a fan and rooky, so I choose possible species options for every tooth, according to books and scientific publications which I have. Hope I make right something at least. Be glad and thankful if somebody will help me figure it out)).- 3 replies
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I am really sore today but it is always a great day when I find a GW because of their rarity in my hunting area. This is a small one at 33 mm. This was jet black on 1st sight, and seems to lighten as time passes. The "shape" of this tooth seems different to me. Does that allow some further insights on tooth position? There used to be some people trying to do tooth position based on shape for Megs, Makos, GWs.... The one on the right below seems to match:
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Great White/Carcharodon carcharias Lineage/Evolution
lesofprimus posted a topic in General Fossil Discussion
Trying to nail down the evolutionary chain of Carcharodon carcharias and its pretty figured out until you get to the very beginnings... It seems that either Isurolamna inflata or Cretolamna schoutedini are the earliest relatives in the evolutionary development of carcharias, but I'm looking for some expert advice.... I know that Carcharodon plicatilis is rightfully disputed but is included as a reference... Isurolamna inflata ? Macrorhizodus praecursor Carcharodon hastalis Carcharodon plicatilis Carcharodon hubelli Carcharodon carcharias Cretolamna schoutedini ? Macrorhizodus praecursor Carcharodon hastalis Carcharodon plicatilis Carcharodon hubelli Carcharodon carcharias- 6 replies
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It is really difficult to classify these small specimens, so I only put together the ones that I think are more similar. This one is Palaeocarcharodon orientalis for sure.
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The weather was great today, so I hopped on the bike and headed off to check out a new museum in the area which was supposed to have opened up on April 1st, but I guess it must have been an April Fool's joke because it was closed. Well, actually we got locked down on Monday, so they weren't allowed to open the doors. I was just hoping, and anyway it was a nice day for a ride. It's a small branch of the well-known and much larger Hauff Museum in Holzmaden, so one of these days soon (hopefully), I'll drop in again to have a look around and talk shop with the proprietors. After I'd studied the closed doors and walked around the quaint old building a couple of times, I suddenely remembered that there was a shark tooth site not too far away which I hadn't visited for a dog's age, mainly because it wasn't nearly as productive as my site back near home. But, what the heck. Nothin' better to do and plenty of time on my hands. It wasn't as bad as I had expected, although the exposure has no obvious horizons, so you just have to scratch away hoping for good luck. Here's what I ended up with after a couple of hours. First, a mix of Carcharias, Mitsukurina and Carcharhinus. But the best one was this 2cm. Carcharias on matrix. Maybe I'll go back there again sometime.
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This tooth was collected from one of the Monmouth County, NJ, mixed Miocene/Eocene sites. The curved shape makes me want this to be a Parotodus benedeni, but it could just be a weirdo Odontaspis, Carcharias, or one of the other more common types of sharks. Would love to hear what you all think.
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A Visit to the Fox Hills fm. - Eastern Colorado
Brett Breakin' Rocks posted a topic in Fossil Hunting Trips
Finally ... a short trek on the open prairie of Eastern Colorado and into a slice of the Cretaceous period. This was my first true jaunt since my move from the East coast and it was a welcome change to my normal routine. My journey really began several years ago when I purchased some shark teeth from a fossil forum member in Colorado. He regularly visits a site on private land in Eastern Colorado that contains (what we think) are exposures of the Fox Hills fm. , and are chock full of marine fossils from that time period. I contacted him several weeks after I arrived, desperate to get away from civilization, and honestly just looking for someone I can chat with about geeky fossil stuff. The rolling hills of harvested wheat and corn stretched as far as the eye could see.... The exposure with the most fossil concentrations sat in a rust colored band of loose sand/sandstone. The best pockets contained shells where the teeth and bone settled. I was there without most of my usual equipment. I wasn't sifting or digging for much more than an hour before we had to leave and came home with plenty of matrix and fossils to keep me busy for several weeks. Shrimp-like trace fossils. As well as Squatina sp. and Sand Tiger Shark, Carcharias sp. teeth .. as well as small fish teeth, small fish vertebra etc. can be found. Good thing he had some small screens or all of these wonderful finds would still be on the sandy slope. Average size for these shark teeth is about 10mm. Cheers, Brett PS. I'll wash the matrix and post any additional micro-fossils here.- 34 replies
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From the album: Misc. Cenozoic Specimens
Carcharias sp. I believe it is a Carcharias.-
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From the album: Misc. Cenozoic Specimens
It's a shame this specimen was broken during removal.-
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