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Found 1,680 results

  1. coprolite or only pyrite?

    I have found this pyrite piece With a very strange shape,is it only pyrite or ? coprolite?or?
  2. I went to my fav cretaceous beach today ,great sunny day
  3. I didn't get any firm id on following tooth. Although worn, there are still spots of enamel, and it may have 2 worn down cutting edges. I'm assuming mosasaur. Any other opinions?
  4. Texas, a short while back

    I liked the uncluttered format of this pic,decided to post it
  5. any help please.....thanks
  6. Cretaceous Teeth for ID

    Hello forum friends, I have another batch of teeth I’m trying to ID. I’m not sure but I think 1, 3 & 4 are the same. #2 I believe to be troodontid and specifically Stenonychosaurus sp. #5 is pretty cool with that huge root but no clue what it belongs to. Thanks for looking and any input!
  7. dagrimaldiCretacTropiclLizard2016.pdf HIGHLY recommended*,for reasons that will become immediately obvious Less than 2,0 Mb *the why of it: 1)simple esthetics(extremely pleasing(I think)photographic coverage) 2)the style of preservation,with concurrent implications for,e.g.phylogeny) below:the least interesting illustration
  8. Found another piece of my Xiphactinus puzzle. I’ll keep returning to see if there’s more. Also found some scattered fish remains. North Dallas Late Cretaceous 85-88 mya
  9. Found in Northern South Dakota

    I apologize in advance for not taking more photos of this. My father in law found this by Shadehill Reservoir in Northern South Dakota. He would really like to know what it is. It is over a foot long and close to a foot wide at its widest point. It is close to 6 inches in height. I am not where it is now so these are approximate. Thanks in advance for any help.
  10. Cretaceous teeth

    I have 6 teeth I’d like to ID here. I think #1 might be a Pectinodon Anterior Dentary tooth but not sure. They were found mostly in the Hell Creek near Jordan, Mt. but some were from the Judith River Formation. The guy who found them just put them all together so I don’t have exact geology unfortunately. I can’t get any closer to these tiny teeth to get pics of the denticles. I know that might be helpful in identification. This is my first ID post so take it easy on me if I didn’t do it right If anyone needs additional photos of any of the teeth from another angle or isolated, I can do that. Thanks for looking.
  11. Serratolamna serrata

    A very nice example of this somewhat common tooth in the PeeDee. It can be almost instantly identified by it's asymmetrical shoulders and difference in numbers of accessory cusps on each shoulder.
  12. Recent Preps

    First, a fistful-o-Leptosalenia. +1 Heteraster obliquatus of stature. Glen Rose fm, Texas.
  13. Ordosemys liaoxiensis Ji,1995

    From the album Vertebrates

    Ordosemys liaoxiensis Ji,1995 Early Cretaceous Lingyuan Liaoning China Length 6cm
  14. Placenticeras syrtale

    I recieved this Upper K ammonite unprepped from a North TX buddy, and spent a little time scribing replaced shell off one side to reveal its lovely sutures. Shown here wet. I may slather it with an elixir of beeswax and turpentine to make sutures pop before placing it on an exalted shelf space for permanent display. Out of courtesy, I’ll withhold add’l details so as not to put new heat on his site. But we can all enjoy the natural splendor from the convenience of our laptops and phones.
  15. A Different Type of Dinosaur

    Not something new but came across this unusual dinosaur that I thought would be of interest to some of our members. Definitely not what most people think of dinosaur behavior and that includes me. Described in 2007. Oryctodromeus cubiularis is a small Cretaceous dinosaur often known as "the burrowing dinosaur." Adult found with 2 juveniles in a burrow; other specimens have been found since in burrows Fossils are known from the middle Cretaceous Blackleaf Formation of southwestern Montana and the Wayan Formation of southeastern Idaho, USA, both of the Cenomanian, roughly 95 million years ago https://www.nature.com/news/2007/070319/full/news070319-5.html Paywalled paper http://rspb.royalsocietypublishing.org/content/274/1616/1361
  16. North Sulphur River fossil help please.

    Hello all! It's been a while since I last posted but it's been a while since I went on a good fossil hunt. These four fossils are the ones I found in the NSR over the weekend that I'm not sure of. I can tell that they are all bone and one is for sure a vert of some type. Any help would be much appreciated. Thank you very much.
  17. Shark tooth

    Hi friends, I didnot post any thing since some time ..it is to hot to go fossil hunting but i went any way and found this large shark tooth it is 4 cm long and 2.5 cm wide at the root > Can you kindly help me identify what shark sp.it is Thank you, very much.
  18. NJ Cretaceous Unknown

    I found this in my early collecting days (late 90s, early 00s) in one of the typical Monmouth County Cretaceous stream. The texture doesn't at all say bone to me, but that notch has me wondering.
  19. Petrified Wood Find

    I found this nice petrified wood specimen while collecting in the early Cretaceous Potomac Group sediments in Washington DC recently. It is pretty well preserved for this unit, with nice surface features, knots, and growth lines present on it.
  20. Possible Tooth

    I found this specimen recently and have been perplexed by it for a while. To me it appears to be a tooth, though if it were I don't know from what. I looked at it from under my loop and it does have some small dimples in it, and is made of shiny black material, which is what drew me to that possibility in the first place. It looks similar to teeth I've seen posted on the forum before, especially in the Pennsylvanian shark tooth topics. I did some searching and oddly enough ended up finding images from a ptychotrygon. I don't know what it is exactly, but form the images it has a resemblance to that shape. I tried taking the best pictures I could, but the object is pretty small. So I guess my questions are if it's actually a tooth and, if it is, what kind is it? It comes from the early Cretaceous Potomac Group, Patuxent (?) Formation (possibly Arundel however) from near Washington DC. Thanks for any help!
  21. Awesome day today,spur of the moment with getting off work early and grabbing the wife to go hunting and so glad we did,,,,,,some awesome finds today!!!!!!
  22. nj cretaceous stream reptile tooth id

    worn but just want to verify this tooth...mosasaur?
  23. Found whilst digging for clay pipes, my son is very keen for this this to be a tooth. It's around 5cm in length. As far as I'm aware this bit of Kent was Cretaceous/palaeogene. Any help IDing would be great. I'm assuming it's just an interesting shaped bit of flint, but the ridges on the thin edge have him hopeful it's more exciting (and our previous finds have often not been quite as interesting as we'd hoped) I only have these photos for now, but should they not be good enough, I'll take some better lit close ups in a few days... thanks for your help!
  24. Giant Spino tooth?

    Hi all, In the market of Middelburg, I saw this big fossil for sale. The stand owners say it is a Spinosaurus tooth from the Tenere desert, from the Cretaceous (when precisely they don't know). But I am not very sure of this ID, because I am not seeing anything that really looks like enamel. Also, it is HUGE! Some of the photos show a 10c (Euro) coin or my hand for size indication... It's approximately 18cm from tip to tip. I don't know much about spino teeth, but isn't that a tad too big? So, what exactly is it? Is it indeed a giant spino tooth? If yes, is this a normal size for it to reach? If it isn't, what is it then? And how much of it is real (in case part of it is fake)? Unfortunately, I didn't buy the fossil, so I can't give any extra pictures. I am curious to see what your answers are! Best regards, Max
  25. Aioloceras besairiei

    From the album Ammonites

    Aioloceras besairiei, 2.8", Albian Stage (100 million years ago, Lower Cretaceous), from Mahajanga Province of Madagascar.

    © Shuo Wang

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