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Found 24 results

  1. Stingray City

    No, not named for the famous dive/snorkel spot in Grand Cayman where tourists can interact (usually quite safely) with swarms of Southern Stingrays but instead referring to the abundance of Dasyatis sp. teeth from the Montbrook fossil site in north-central Florida. While this site is a treasure trove of fossil material providing huge numbers of specimens of turtles as well as other creatures like alligators, gomphotheres, tapirs, peccaries, llamas, and ever an early saber-toothed cat, many taxa on the faunal list are only known from micro-fossils. In addition to valuable and scarce fossil remains providing evidence for things like snakes, lizards, frogs, salamanders as well as several species of birds, the micro-matrix is loaded with huge numbers of more common fossils. A variety of tiny fish teeth and vertebrae (and lesser numbers of more delicate ribs and skull fragments) are common finds. There are a number of species of minuscule shark teeth as well--though the majority seem to be from a species of sharpnose shark (Rhizoprionodon sp.) with a few novelties tossed in to make it interesting. By far and away the most common chondrichthyan fossil at this site are from stingrays. In a report of the relative abundances of chondrichthyan specimens from this site (encompassing nearly 13,000 specimens) the vast majority (well over 9,000) are tiny Dasyatis teeth. The preservation colors at this site are quite different from the phosphatic black/gray coloration predominantly found in Florida creeks/rivers. Most are tans and light browns with a number of creamy white teeth that are so bright and clean that they look like they could have been shed yesterday. I'm presently picking through some finer material that was washed through a fine brass screen so the finds tend to be around a millimeter in size (requiring a microscope to spot on my picking plate). Last night I finished a batch and was amazed at the density and diversity of color, form, and size (some really tiny juvenile teeth in there as well). I decided to take a "wallpaper" image of a spread of these tiny teeth for fun. For reference, the field of view in this image is roughly the size of a US postage stamp. Cheers. -Ken
  2. My youngest son found this spine on the Conecuh River, Covington Co., AL Geology: Lisbon Fm. (basal), Eocene, Late Ypresian My other two kids also found spines, but not this nice. I, of course, was the only one who didn't find one! Anyway, I wanted to show it to you all.
  3. I've always been fascinated by the Cretaceous sea and its myriad of terrifying carnivores, many that would've made Jaws look meek. After watching BBC's Sea Monsters, I made it my goal to compile a box of sea monster fossils. I started this journey 10 years ago, and finally completed the box recently. Allow me to present my Predators of the Cretaceous Sea collection, and take you on a journey to the most dangerous sea of all times. The box measures 20.25 inches long. Inside are 24 unique predator fossils. I will introduce them from left to right, top to bottom: Rhombodus binkhorsti Age: 70.6 - 66 mya | late Cretaceous Formation: Severn Formation Locality: Bowie, Maryland, USA Size: 1 meters Diet: Molluscs and crustaceans art by Nobu Tamura --------------- Polyptychodon interruptus Age: 105.3 - 94.3 mya | Cretaceous Formation: Stoilensky Quarry stratigraphic unit Locality: Stary-Oskol, Belgorod Oblast, Russia Size: Maybe 7 meters (This is a tooth taxon so size is not confirmed) Diet: Anything it could catch Note: If you consider Polytychodon a nomen dubium, then this is a Pliosauridae indet. art by Mark Witton ----------------- Prognathodon giganteus Age: 70.6 - 66 mya | late Cretaceous Formation: Ouled Abdoun Basin Locality: Khouribga Phosphate Deposits, Morocco Size: 10-14 meters Diet: Everything art by SYSTEM(ZBrushCentral) --------------- Coloborhynchinae indet. Age: 99.7 - 94.3 mya | late Cretaceous Formation: Kem Kem Beds Locality: Southeast Morocco Size: 7 meters (high estimate) Diet: Fish and cephalopods
  4. Stingray barb

    From the album Fossil Collection

  5. Hello everyone. I saw this green river stingray bidding for much less than it is worth on an auction site. I will likely not bid on it, but in case I do I wanted to check it’s authenticity. I know these are not really faked, but it would be quite a large purchase so I just wanted to make sure everything was in order with it. Thank you all!
  6. Found this while searching for shark teeth near Jacksonville FL. I thought maybe a stingray? Any ideas? Sorry low quality pictures. The edges are strange but cant seem to get the camera to focus.
  7. I live in the Arabian desert, near Jebel Hafeet. Yesterday I found a pavement tooth of an eagle ray. Today I found a mysterious fossil which looks like it might be part of the body and fins/wings of a ray. I appreciate that their bodies were made of cartilage and that is not usually preserved very well, but in some cases it’s possible. Any opinions would be most appreciated. Thank you so much.
  8. I've recently moved to coastal South Carolina in the Charleston area. I've also recently discovered the fun of hunting for shark teeth. On my last shark tooth hunting expedition I came across this interesting piece as I was searching a local beach. I think it may be a stingray mouth plate and would like someone to confirm my suspicion. Maybe it isn't even a fossil.... it is in spectacular condition and that makes me wonder/doubt it is. Any help is appreciated.
  9. Picked up on Myrtle Beach today. I've seen stingray mouth plates before and this reminds me of that, but they were always small detached pieces with the vertical lines - never inside something bigger. So maybe this is something else? A piece of shell maybe? Appreciate your thoughts. Thanks! Paula
  10. Asterotrygon?

    Hello! I have this juvenile stingray here from the green river formation, F2. The seller labeled it as a Heliobatis radians. At first I was taking his word on the ID but is it possible this is an Asterotrygon? I know the chances are very slim but I have reasons to believe this is an Asterotrygon: 1. Asterotrygon is more common from the F2 beds, this is from F2. 2. The general body shape leans more towards Asterotrygon than Heliobatis. 3. The tail looks shorter than other Heliobatis juvenile tails I've seen. Also the base of the tail shows some developed denticles, possibly the early growth stage of the thick tail of an Asterotrygon. Overall I know this is all probably wishful thinking, but I'd love to hear the opinions of you all.
  11. Heliobatis radians (male)

    From the album Chondrichthyes

    This specimen has a funny story behind it. The post office mishandled the package so this guy came out of the box broken. Thankfully the very helpful folks here at TFF were able to help me piece him back together. Ok now on to the specimen itself. This is a Heliobatis radians from the Green River Formation: Wyoming, USA. The diameter of the two pectoral fins is 8.5 inches which is fairly big for this species. And the presence of claspers on the pelvic fins make this stingray a male. All of these observations form the conclusion that this is an adult male Heliobatis. The preservation of this stingray is fantastic. A huge majority of the small bones that make up the pectoral fins are preserved. Under magnification one can see the cell structure of the cartilage. Also, the very best part: there is absolutely no restoration! The only work done to this fossil was gluing it back together with cyanoacrylate (super glue). Unfortunately the tail is missing, but that does not detract from this awesome Heliobatis radians. I will post some close up pictures once I get one of those camera loupes you attach to your cell phone camera.
  12. Folly Beach Finds

    Hey guys! Just a few things I found on Folly, i’m not too knowledgeable. Think I got a puffer fish & stingray mouth/dental plate. If anyone can ID and give an approximate age of what’s in the pic, that’d be cool. Pic attached.
  13. Hello everyone been ages since I’ve visited this site so I figure I’d share a trip I went on Saturday. I went out with a good buddy of mine and a guy I haven’t met before to try Peace River. We put in at Wauchula and went a few miles from the boat ramp in our canoes. After a few hours of digging we found some interesting stuff I’ll include pics of what I found . This is probably my favorite find of the day, a giant stingray plate chunk, anyone ever see any like that?
  14. I found this tooth (Rajiformes?)

    I fount it in marine sandstone, but I don´t know what it's. Age: Probably Maastrichtian.
  15. Stingray info

    I apologize if this is a dumb question, but I inherited this large fossil years ago from my late grandfather. Any info you may have regarding origin, value, etc Woild be greatly appreciated!!
  16. Stingray Barbs

    Do you ever look at your fossils and say, ok that's enough, I have plenty? haha.... I have many more stingray barbs...... I think I've reached my capacity of them.....
  17. A fellow TFF member gave me some micro material from the Eocene, Meridian Mississippi . I don't know much about micro fossils so was hoping to get some info on the following? Which were all photographed next to a US nickel. photos 1 and 2
  18. Khouribga Material: ID?

    Hello again, Here are the other things that I bought at the same time as my Squalicorax tooth, in an earlier topic today. They all come from Khouribga, Morocco (Maastrichtian in age, ~68mya), but I do not know what they are... Any help is appreciated! Best regards, Max
  19. Heliobatis radians

    This is a female Stingray specimen called Heliobatis radians and is one of only two species of ray from the Green River Formation. Like modern stingrays, this extinct genus had barbs on its tail. This one is known to be a female due to the absence of claspers used by the male in mating.
  20. Stingray Spine #2, Front

    From the album Pleistocene Microfossils from Merritt Island, Florida

    Another view of the stingray spine.
  21. Stingray Spine #1, Back

    From the album Pleistocene Microfossils from Merritt Island, Florida

    A rather broken stingray spine from the Melbourne Bone Bed (10,000 - 20,000 years old). Found in microfossil matrix gathered from a dredge spoil island near Merritt Island, Florida.
  22. What Kind Of Ray?

    Found this stingray dental plate washed up on Flag Ponds beach. It was quite a good day for odd finds! I know the two most common rays plates found there belonged to duck rays and eagle rays, but this is neither. Anyone got an idea?
  23. Seeking Second Opinion, Stingray Tooth?

    Hello, I came across this interesting find in our landscape river rock in our backyard. It looks porous on the flat bottom kind of like bone, but has a rounded top and some interesting raised lines on the surface. A friend brought it another friend who identified it as a stingray tooth. But... when I looked up photos of stingray teeth I found mostly flat ones with parallel lines and not any that had rounded lines on one end more like a finger print. I was just curious if anyone could give me a second opinion on the identification.