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Found 33 results

  1. Is there any fellow fossil addict here that could help me to: Aligator skin plate (thats called a scute, right? ) Larger Ray dental plate No need for mint/ spectacular pieces, recognisable will do. Got some trilobite bits & bobs for trade Cheers Pat
  2. Hello everyone, I am in desperate need of help with a huge debate I have been having with a friend over fossils preserved in ironstone concretions. From some of what I had read to some advice from other members I it possible to find vertebrate bone among shells and other mollusks preserved in an ironstone concretion. Whether it leaves a trace of the organism, morphs the organic material into the structure of the iron concretion through the decomposition with preserving, or whatever else it may be it seems to be possible. So recently I have hunted a place known to have recorded marine cretaceous shell and other mollusk found in ironstone concretion as well as cretaceous plants in shale, it seems like not to vast of enough study has been done there only from what I know, but since no vertebrate material had yet been discovered there though there can maybe be the possibility. I found these two particularly distinct pieces in iron concretions that exactly mimic the scute structure of soft shell turtle and croc in my opinion, I know how iron concretions are famous for leaving psuedofossils and such but these two pieces look way to exact and since its possible for shells and mollusks to preserve why not scutes? So I am here looking to end this debate, I'm looking for your opinion, can these be labeled as fossils, traces, etc? Or are these among some of the world's best iron concretions and nothing more. Your input especially if you are very experience in this subject would be tremendously appreciated.
  3. Some more Moroccan fossil listings. Wondering if any are worth looking into. Trying to properly ID. #1 Partial unidentified dino limb bone or Croc?
  4. Matoaka beach, Choptank FM, Lower Miocene Before I start out, may I just say Matoaka is a beach not known for its shark teeth. Most fossil hunters go there for invertebrates, Which are incredibly abundant. Shark teeth are usually small, a bit worn, and take lots of work to find. The old saying (that I just invented) goes “If you want a chance at a meg, go to brownies. If you want lots of sharks teeth, go to Purse. If you want a snail, go to Matoaka. If you want to be told you can’t walk under a cliff go to Calvert Cliffs state park” I decided that I was going to walk as far as I felt I could and still get back with daylight. For the first stretch I found literally nothing of interest and the nagging fear that I was going home empty handed kicked in. I had set my mind to “Ecphora mode,” because sharks teeth were not gonna be found. The tide was lower than last time, so I got to have a good look at a new slide that looked really promising. I was right, it was littered with Ecphora. Unfortunately, almost none were extractable or worth the extraction. This one was a real heart breaker, big for me but sliced in half and in really loose clay.
  5. Mosasaur or croc tooth - NJ Cretaceous

    Hello everyone! I hoping to get some clarification to help differentiate Cretaceous crocodile teeth from Mosasaur teeth. These two were found in the New Jersey Cretaceous. The first one is a shade under 1/2 an inch. It is conical and doesn't appear to have any cutting edges (but they could be worn off). I was leaning towards Mosasaur tooth on the second one because of the size of 8/10ths' of an inch, but it is slightly more slender than my other Mosasaur teeth, very conical and the root looked a bit different. It appears to have one very weak cutting edge but I'm not positive. It was pointed out to me that crocodile teeth roots tend to have concentric rings so I was wondering what everyone thought regarding these guys. Thanks! @Plax @josephstrizhak
  6. Calvert Cliff Croc bone?

    Looking for confirmation here, is this a croc skull bone or osteoderm? I was putting all my Brownies beach finds into one box and I saw it and immediately picked it up, I don’t know how I missed it! Croc material is pretty uncommon on the cliffs, so if even this one inch bit is croc I’d be super happy!
  7. Crocodile tooth or plesiosaur

    This tooth came from a NC quarry known for both Eocene and Cretaceous fossils. My first inclination was a croc tooth. Is it possibly plesiosaur? Seems like the shape could fit either.
  8. The Green River Formation is one of the most well-known fossil sites in the world, occupying present-day Colorado, Utah and Wyoming. This Lagerstätte has been noted for its well-preserved fish fossils, as well as numerous invertebrates, plants, and sometimes even reptiles and birds. Green River fossils are Eocene-aged, at 53.5 to 48.5 million years old. Thankfully, not only are Green River fossils attractive, they also remain affordable to the casual collector. Allow me to present my humble collection. Crocodile tooth Borealosuchus sp. Southwest Wyoming Water bird tracks (possibly sandpipers or plovers) Presbyorniformipes feduccii Vernal, Utah Bird feather Aves indet. Southwest Wyoming Crane flies & Mosquitoes Pronophlebia rediviva & Culex sp. Parachute Creek Member; Douglas Pass, Colorado
  9. Cretaceous Tooth

    Need help on this one please. Its pretty worn - is it a croc or maybe a mosaur? It is really flat. Thanks. Sorry pics aren't the best.
  10. Another One I'm Not Sure Of...

    I've got this one fossil that I'm not quite sure how to classify it... It\s supposed to be a fossil Pterosaur tooth found in Kem Kem Beds of Morocco.... 1.75" long... However, it doesn't match any of my Pterosaur teeth... Or Crocodile, or Spinosaurus... Is it some sort of fish tooth? Thanks in advance, more pics if needed...
  11. So I was browsing our favourite auction site, and I came across these interesting specimens. The seller claims these all belong to the same individual, while at the same time, strangely, they are selling each bone separately. And while these bones are definitely real Kem Kem bones, I'm posting it in this forum because there is reason to believe the information that these belong to the same animal is suspect. All of these are sold as being from one individual Spinosaurus. This first one is definitely a Spinosaurid cervical vertebra. a fairly nice one. But the rugose triangular area on underside shows that this is in fact from a Sigilmassasaurus, one of the Spinosaurids from Morocco. From the length of the vertebra this can be placed somewhere in the back of the neck of the animal. Next specimen is also a Spinosaurid cervical vertebra. Though due to damage this one is harder to identify as Sigilmassasaurus. Again due to the shortness this seems to be a cervical vertebra from somewhere back in the neck. The dorsal spine though worn, seems to be not that big. So this might point towards it being Sigilmassasaurus as well. So seems fairly plausible if the seller says these belong to the same individual right? Now here comes the problem. This third specimen is listed as belonging to the same individual. But this is clearly a cervical vertebra from a type of crocodile. Since it's nice and complete we can see which way is the front and which is back. The front of the centrum looks to be concave, while the back of the centrum here is convex. This is typical of some crocodiles. But on Spinosaurids it's the other way around, with the front of the centrum being convex and the back is concave. So with that this specimen casts doubt on the whole claim that some of these specimens belong to the same animal. Which is too bad 'cause the fossils seem pretty nice. There were some other specimens as well. But these three were clearly identifiable.
  12. Baby Gater skull fragment

    Here is the find we made in SC. I think It is a fragment of a baby alligator or croc. Found it on the beach in the surf. Any thoughts? And how rare are these little guys?
  13. Tiny Mystery Tooth: Dino? Croc? Mos?

    I found this tiny tooth today looking through some matrix I had previously searched. I always search any matrix at least a second time after re-cleaning it. The matrix is from a Cretaceous river site here in North Carolina. The site is Black Creek Group, Bladen Formation. It is mainly marine, but many dinosaur teeth and bones are found there. My first thought was croc (Leidysuchus?), far posterior. But soemthing does not look right to me for it to be that. Looking for your thoughts. The tooth is 6.5 mm long, 4.9 mm wide and 4.1 mm tall. I apologize for the pics, my digital microscope is on the fritz. I edited these to try and get the best pictures I could.
  14. Hi all... I finally got my new prep lab up and running and pulled a jacket out of storage. A pile of crocodilian scutes and a few bones form the Eocene Wasatch Fm of southwestern Wyoming. i have exposed the bones and I am stumped. Do I leave these bones in matrix to show them as found, or take them out and have a cool collection that is much more easily stored or displayed. They main argument for removing them is that it is a fairly big bloc, and I don't have all that much display space, and it is not really articualted. The main argument for displaying as is is that it would be a lot less work. A lot less. I kinda want to know what you folks think. I was hoping I would find a skull or a jaw, but no such luck yet, although there are few areas that puzzle me. Here are some pix. Notice that it is primarily scutes, as croc skeletons tend to be. and a few closer up shots. Here is a pile of scutes. and here are two leg bones... and a bunch more scutes, and at the top of the picture is a string of articulated verts. Here is another shot of the verts. Through the out-of-focusitude, notice how fractured they are. These will be a lot of fun to put back together, but they will look a lot better (I hope). Thanks for looking and What would you do?
  15. When I was just looking at my croc coprolite specimens from the marine Paleocene Aquia Formation of Liverpool Point Maryland I noticed this interesting 3.75 inch by 2 inch specimen. I hadn’t noticed before that it contains furrows. See the second picture which I darkened a bit to try to better show the furrows. They are much more obvious when looking at the specimen itself. I learned about furrows from Lori’s post below. http://www.thefossilforum.com/index.php?/topic/78589-possible-amphibian-jawmaxillary-with-teeth-in-coprolite/&tab=comments#comment-829344 I’ve now seen furrows in several croc coprolite specimens from the Paleocene of Maryland and the Eocene of Virginia. Crocs have extremely strong stomach acid. So strong that I’ve read in several papers that captive crocs fed a diet of chickens and/or rodents have no bones in their coprolites. Interestingly their coprolites do show feather and hair traces. Anyone else have coprolites with furrows? Lori @GeschWhat I know you do. Please post some pictures. Paleocene coprolite with furrows from Maryland: Two Eocene coprolites with furrows from Virginia: Marco Sr.
  16. New tooth, don't think it's mosy.

    Found this tooth today at Post Oak Creek. Don't think it is mosasaur. Doesn't look right. Thinking it could be plesiosaur or croc? I have one worn plesiosaur I found a couple of years ago. Thoughts?
  17. Mystery Tooth - Croc or Dino?

    Got this tooth in a trade package. The exact locality is unknown, but is somewhere west of the Mississippi. It seems similar to the gator and croc teeth I have found down here in Bone Valley Florida, but the interior structure appears different. Any ideas what this might be?
  18. Our family of 3 attended the special event that was held at Stratford Hall yesterday. Dr. Weems was the guest speaker. This was our second year participating in the event. I liked it being in June instead of August this year. It was warm but not as hot as August. Tides were decent. Here is what the three of us managed to find. (Pretty good day) Can't wait for next year.
  19. Croc skull Crocodylus Porosus??

    Hi all, I have acquired this skull from Sragen, Java. Can someone confirm or ID it as a crocodylus Porosus please. I also have no idea of value if people can give me an indication that would be great. Whether for sale or insurance value as I haven't decided yet. I've given it a good look over, no restoration at all, as it came out the ground. It is 880mm long and 450mm at its widest point.
  20. Asking for some help if I could get an ID on the species of this recent find of mine? I've pulled from GMR (GreensMill Run Greenville NC) Rick noted it's def. Reptile but unsure 100% if it's Croc or mossasaur? Any clarification on that and if there is enough of it to go further into a species/placement/relative size of what it belonged to would be AMAZING! I found it with the usual GMR assembly of great white, tiger shark teeth, whale bone/ear bone, a mossasaur tooth and petrified wood.
  21. croc

    A nice Lee Creek croc tooth.
  22. Lee Creek Crocodile Tooth

    Most of the material I have seen on Lee Creek crocodiles have identified them to the Genus Thecachampsa; and to the species antiqua. However, I have one tooth that is different from all the others. Are there others species of croc present in the Lee Creek fauna? This tooth is almost a dead wringer for the tooth pictured in this drawing by William Bullock Clark The tooth in this drawing id identified as Thecachampsa contusor (Cope, 1867) Illustration of a tooth of Thecachampsa contusor (=Thecachampsa antiqua) collected from Aquia Creek, Maryland. 4a. Lateral view. 4b. Basal view. Printed in Eocene, Volume 1 by the Maryland Geological Survey, William Bullock Clark (1901). So second, is T. antiqua synonymous with T. contusor. Here is the tooth
  23. Flag Ponds Friday!

    I got to hit Flag Ponds for a few hours this afternoon. It was blustery and 33°, but turned out to be a pretty good day. These are the best from today.
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