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Showing results for tags 'Shark'.
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From the album: Fin Lover's South Carolina Finds
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I recently found a few shark teeth on the beaches of Ft. Pickens (Gulf Islands National Seashore) on the Gulf of Mexico. The tooth in the top left corner is from a Great White. The second from the right on the top row is from a Bull Shark (I think), and I believe the tooth on the bottom right corner is from a Lemon Shark. Can anyone help me identify the rest? Many thanks in advance!
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- Florida
- Gulf of Mexico
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Today a study was published on many exceptional body fossils of the durophagous shark Ptychodus, revealing it to be a lamniform - the same order as the great white, megalodon, etc. For a long time this shark's taxonomic placement was uncertain. The authors also conclude it was a high-speed predator that preferred animals like turtles and ammonites for prey rather than benthic mollusks and crustaceans. Vullo R et al. 2024. Exceptionally preserved shark fossils from Mexico elucidate the long-standing enigma of the Cretaceous elasmobranch Ptychodus. Proc. R. Soc. B 291: 20240262. https://doi.org/10.1098/rspb.2024.0262 Figure 6. Life reconstruction of the tachypelagic lamniform shark Ptychodus in the early Turonian open marine environment of Vallecillo. Two individuals are shown preying on nektonic shelled organisms (i.e. an ammonite and a sea turtle) in a trophic hotspot. Artwork by Frederik Spindler. Figure 1. Fully articulated Ptychodus specimens from the early Late Cretaceous (Turonian) of Vallecillo showing the general morphology and anatomy of the genus. (a,b) Photograph (a) and interpretative line drawing (b) of MMSP CPC 3063, adult specimen of Ptychodus sp. (c,d) Photograph (c) and interpretative line drawing (d) of MMSP CPC 3064, juvenile specimen of Ptychodus sp. All to the same scale. Figure 3. Anatomical details of Ptychodus. (a) Scleral capsule showing tesserae, specimen MUDE CPC 3065. (b) Portion of articulated dentition, specimen MMSP CPC 3063. (c) Close-up on two teeth of the lower dentition (box in (b)), specimen MMSP CPC 3063. (d) Precaudal vertebral centrum showing parallel lamellae (white arrow), specimen MMSP CPC 3067. (e) precaudal vertebral centra and muscle remains (well-preserved myomeres plus scattered isolated myofibres), specimen MMSP CPC 3067. (f) Close-up on muscle tissues (box in (e)) showing myospeta (white arrows) and myomeres composed of myofibres (black arrows), specimen MMSP CPC 3067. (g) First dorsal fin, specimen MMSP CPC 3063. (h) Pectoral fin, specimen MMSP CPC 3063. (i) Tail portion showing second dorsal fin (white arrow indicating its origin), anal fin (black arrow indicating its origin) and proximal caudal fin skeleton, specimen MMSP CPC 3063. Figure 4. Cladogram (strict consensus tree estimated from the 6349 most parsimonious trees) showing the placement of Ptychodus within Elasmobranchii. Numbers in nodes follow the arrangement ‘node number: jackknife support/Bremer support’. Clades of interest for the relations of Ptychodus are colour coded.
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- 13
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- lamniform
- lamniformes
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My kid found this in february 2023 at Esterillos beach in one of the many tidal pools. Kinda looks like enamel to me. What do you think?
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Hi, I found these teeth a while back and just never could find a solid match, does anyone know the species? They were found on the Kaw river in Kansas. Thank you!
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Hello fellow fossil hunters! This is my first post here and I came here for some expertise on identifying a tooth I found recently on a trip to Portugal. I found it at a beach in the Algarve region. I read that locally they have mako sharks and blue sharks but I’m not sure what animal it is from. Since this is my first (maybe) fossil find. I appreciate any guesses for ID-ing this tooth, thanks in advance! 🙏😁
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Hello all! I was wondering if anyone could help me identify some shark teeth. I was gifted most of these teeth from the late @caldigger. A lot of them came from Shark Tooth Hills and a few I believe were misc teeth he had kicking around. I had labels for them at some point but a recent move found the note associated with them missing. The first 9 photos are shark teeth from Doren (@caldigger). The teeth in the last 3 photos I purchased when I worked at a local rock and gem shop. I’m pretty sure they’re plain ol’ otodus teeth. I would greatly appreciate if anyone could give me some insignt into what they could be so that I could label them appropriately All the best! -V
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Long overdue to post about some of my NC finds from earlier this year! First up was a very exciting trip to the NC Triassic to look for a variety of plant fossils, which were my first Mesozoic plants. Beautiful white coloring on some of them as well, the matrix is extremely soft (you can easily scrape it with your finger nails) so I've done some experimenting with how to best consolidate them without damaging the visual effect. Not a ton of variety at the site, but they are abundant and sometimes surprisingly well preserved. I have found Otozamites hespera and Otozamites powelli, as well as a few other kinds of plants. I also disturbed a "hibernating" lizard, initially I was concerned that my digging had injured him, but after a some time in the sun he scampered off seemingly no worse for the experience.
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Hi everyone - does anyone know offhand what non-Cretaceous formations are present at Holden Beach, NC? I have not been able to figure it out. For example, what formations might this tooth be from, and what is the age range? I assume Pliocene onwards?
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Found both these teeth near the peace river i've never found this kind of tooth shape. Im pretty sure its a type of mako but was wondering if anyone could an ID it or give any type of information.
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- Bone Valley Formation
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Found this rock hounding in Texas, is this a tooth? Thanks for any and all help!
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From the album: Fin Lover's South Carolina Finds
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From the album: Neutache Shoreline
My first non-ptychodus shark tooth. Unique shape on these 'Crow shark' teeth. 3/10/24 #VM1© CC BY-NC
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Found on the coast of Hilton Head South Carolina USA. I am quite unsure of what this is, it’s very eroded and might ether be unidentifiable, or just a funny looking rock. However, I find it looks very tooth like, with one wide end, and one pointy end, as well as a cavity that is open at the wide end and gently tracks further into the “tooth” My first thought was a premolar of some sort of primitive whale sans the roots. But that seems unlikely. Please share your thoughts! I’d love any sort input and if you would like a better picture of a certain angle, let me know! Here are the pictures 1. Front side 2.Back side 3.Right side 4.left side 5.Top side 6.Bottom side And here is a video of the specimen rotating! (ignore the sparkling putty, it was the only option I had to get it to sand up nice while still being visible at all angles) IMG_0199.mov
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From the album: Sharks
A rather cool association piece - a Cretodus with a Ptychodus nestled between the root lobes. -
Hello all. I have this one shark tooth from the London clay and I’m really stuck on its identity. I’ve already ruled out Striatolamia due to the lack of lingual folding and shape of the cusplets. The only two options I have are Hypotodus verticalis and Glueckmanotodus heinzelini, but it has features of both and also has features that both do not present. It’s from the London Clay formation at Walton-on-the-Naze, UK. The age is early Eocene (Ypresian). Any help would be appreciated.
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- Eocene
- london clay
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I also have an Otodus Obliquus which I’ll upload once back home.
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- broad tooth mako
- megalodon
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My friend has this huge tooth and we want to know what shark it was likely from, no idea where it was found, but hopefully someone can help us!
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Shark Squalicorax falcatus Eagle Ford Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils : Sharks and Rays
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Shark Ptychodus whipplei Eagle Ford Formation
JamieLynn posted a gallery image in Member Collections
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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- cartilage
- cretaceous
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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