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  1. Othniel C. Marsh

    Moroccan Reptile Tooth

    Below is a reptile tooth, from the Ypresian of the Ouled Abdoun Basin in Morocco, that I have been struggling to identify. I suspect it to be a dyrosaurid of some description, but I'm not particularly confident in that statement. The tooth has no serrations, but it does have a ridge on one side, which I attempted to capture in the final image. Thanks in advance for any proposed ID's Othniel
  2. Othniel C. Marsh

    Potential Sarcosuchus Tooth

    The tooth shown below is labelled as coming from Sarcosuchus imperator, but I am a little dubious as to if this identification is correct. Unfortunately this is the only image of the specimen the seller has provided. Thanks in advance for any guidance Othniel
  3. These are fossils from the early Campanian of northwestern New Mexico, collected on BLM-managed land as part of the Menefee Expedition. The Menefee Expedition, which has run yearly since 2011, is a multi-institutional effort combining the talents of the Southwest Paleontological Society, Western Science Center, Zuni Dinosaur Institute for Geosciences, and formerly the University of Pennsylvania, permitted under the Bureau of Land Management in New Mexico. Fossils collected as part of the Menefee Expedition are prepared and stored at the Western Science Center in Hemet, California. If you'd like to watch the day-by-day of the expedition, be sure to check out the Expedition Video logs on YouTube! Baenid turtle shell- my find! Dinosaur limb end- my find! Large croc tooth, likely Deinosuchus- volunteer find! Leaf and stem- my find! Gar scale- my find! Dinosaur tibia- volunteer find! Brachychampsa tooth- my find! Bivalve, which I think is a unionid- my find! Crocodilian tooth in matrix- my find! Finally, a dinosaur toe bone- volunteer find!
  4. Sonickmonx

    3 Crocodilian/Borealsuchus Scute ID

    I collected these 3 crocodilian scutes from the bank of the Pee Dee river recently. They come from a lag deposit at the base of the PeeDee formation that immediately overlies the Donoho Creek formation. This lag deposit would be in the range of 65-75 mya, towards the end of the Cretaceous. I am curious about the noticeable differences in the 3 scutes and wonder what they came from. Borealsuchus and other crocodilians are known from this locality, and in my opinion the 2 with the larger holes look like borealsuchus more than anything else I've seen. Would love any input from people more knowledgable than me!
  5. Arthrodire

    Deinosuchus illustration

    Hello, new to the site and very impressed. This was done for under Dr. Schwimmer for his book King of the Crocodilians. The process of refining the teeth morphology took a very long, almost geologic, time. Acrylic with oil glazes. I mostly do fish though. Anyways, thanks for having a look.
  6. Hi there everyone. I’m embarrassed to even ask this, but I would have sworn, since it last came up for me, many years ago, that Dyrosaurus came from the Cretaceous Kem Kem beds, but everything I’m seeing now says it’s from the Eocene. So Dyrosaurus is an Eocene crocodile and would not be coming from the Kem Kem beds? Would an elosuchus probably be what would have come from the Kem Kem beds that might be mistaken for a Dyrosaurus? My knowledge of this partial jaw is that it came from the Kem Kem beds, but it was said to probably be from a dyrosaurus. It wasn’t a definitive statement, but that was the thinking. Some of elosuchus jaws I look at seem like the could match very well, but some seem off, and I would just like the thoughts of anyone who would know better than I would(most people). Thanks any and everyone who were able to help!
  7. Jan Lester

    Teeth and mandible?

    My son found this on the beach on Tybee Island. Sorry about the lack of scale, we’re on vacation and don’t have a ruler with us. Could it be crocodilian?? I’m amazed he saw it.
  8. marsupial

    Dinosaur teeth?

    Hi, went to the fleamarket and bought this. I think they’re some pseudosuchian teeth.
  9. Kikokuryu

    Crocodylus or Gavialis tooth?

    I had a question about the ID of croc teeth from the Solo River, Java, Indonesia. While the bigger tooth is more easily identifiable as Crocodylus siamensis (syn. Crocodylus ossifragus) just on the size and shape, I was unsure about the smaller one. Croc teeth from the Pleistocene deposits (not sure what formation it's called) are usually just sold as Crocodylus ossifragus, but Gavialis bengawanicus also appears to have been present. The smaller tooth does have prominent fluting, but I'm not sure if that's even a distinguishing feature. I haven't really seen a whole lot of Crocodylus teeth, fossil or extant. Not sure if smaller teeth from this region are even identifiable. If anyone has any knowledge of distinguishing gharial from crocodile, help would be appreciated. Measurement in centimeters. Last image here is just a comparison with a Thecachampsa americana (left) from Bone Valley, Florida.
  10. siteseer

    Kem Kem tooth Crocodile?

    Here's a tooth I bought at the gem show back in the days when Moroccan vertebrate stuff was starting to appear at Tucson and other shows. I've been meaning to show it to people for years. It's from the Kem Kem Beds (Cenomanian), Taouz area, Morocco. It's about 61mm long with cutting edges that appear to be slightly crenulated rather than finely-serrated. It's oval in cross-section on the root end but the crown becomes blade-like toward the tip so it is somewhat labiolingually compressed. I assume it's a crocodile tooth but thought it might have a small chance at being from a dinosaur. I'll hit up the "Kem Kem regulars" for comment but am interested what others say as well. @Troodon @Haravex @LordTrilobite Thanks, Jess
  11. Hello, I've been sorting out my fossils and was wondering if this tooth is real? The label says it is a Sarcosuchus tooth from just south of Taouz, Morocco. If it is real, would it perhaps be better labelled as a crocodile tooth rather than Sarcosuchus? Thank you
  12. Hey gang, still going thru old fragments and found this piece that I'm wondering about. Hope there is enough to confirm crocodilan due to the small elongated pits/foramen and maybe rule out any sea turtle jaw/dentary/skull possibilities. Shell pile find. Probably Plio-Pleistocene based on the types of shells found with it. Its approximately 8cm long X 1.7mm wide. It has a small channel/groove along its length that tapers to down to almost 1mm. Also shows a large foramen? that connects to this channel/groove/foramen? thru the flatter side of the bone. Its got many distinctive elongated small pits/foramina? that are only 1-2mm long and none that appear to be larger. I was hoping it was a sea turtle dentary/jaw fragment as that's what I'm looking for in the box of scraps but I cant find any matching comparative photo. I'm not smart enough to say really one way or the other and defer to you all. Is there anything visible that screams crocodilian or what part it may actually be from? Just doesnt seem very robust and seems very thin to me but I've not seen alot of reptile material... Aside from teeth/osteoderms is there anyway to distinguish gator from croc bones that show this kind of pitting? Ok here's a general picture 1st and then I flipped the specimen around in some in better outside lighting. Then some closeups of the pitting. Lastly, a view of the canal like structure that runs the entire length of the piece and seems to be possibly connected to a larger opening/foramen? on the flat side? Hoping this is an easy one for you bone folks. thanks for your thoughts! Regards, Chris
  13. ThePhysicist

    Crocodilian teeth

    From the album: Hell Creek / Lance Formations

    Crocodilia (teeth) Hell Creek Fm., Powder River Co., MT, USA Cretaceous Crocodilian teeth - could be from Brachychampsa and/or Borealosuchus?
  14. Greetings, y'all. Its been a busy summer. No time to post much here, but I did get out quite a few times this year, even though I successfully turned 60 years old this summer. Let's see what happened in my little world last weekend. During a May trip, I went to one of my usual hunting areas in southwestern Wyoming where I have collected mammal, croc, fish, and turtle fossils from the Bridger Fm over the past two decades. There is a lot more terrain out there for me to explore so I decided to check out a new area a few miles further down the two-track. Here is a photo of where I ended up. Upon a quick survey, I found numerous turtle pieces high on this hill near the big shady area on the right of the photo. But time was running out. It had taken quite a while to navigate the 'road' to get here and the weekend was running out. Time to head home. But I knew I would try it again later. That was back in May. Well, 'later' was this past weekend. I started on Friday where I had found fossils in May, then headed downhill. The whole base of this ridge is loaded with turtle pieces from a variety of Eocene turtles of all sizes. All bits and pieces. I found one mammal piece and a few crocodile pieces, but then something jumped out at me... a pile of bones that suggested the bone continued into the rock. And, bonus, I could tell this pile of bones was the articular end of a crocodilian jaw. It was time to start digging, and digging I did. In a short while I had a jawbone about a foot long, then ran into couple of nice teeth. Pretty exciting. I was so excited about this that I forgot to take photos along the way. Here is one. The originally exposed bone pieces are the white pieces on the left. For scale, the paintbrush is 2 inches wide (about 5 cm). Just above the tip of the handle of the scraper is the first tooth I found. The second tooth broke off as part of its discovery (but I kept it for re-glueing). The hammer tip above points to its base still in the jaw, almost two inches to the right of the other tooth. I camped out on site... The next morning as I was eating my granola for breakfast (with coffee) I had a visitor. Find and identify the animal... Yes, that is a bull elk on the horizon about a half mile away form me. he watched me for a long time, and I him. There are many desert elk in southwestern Wyoming but it is always a treat to see them. Especially way out in the wilds. I certainly don't see them on every trip to this part of the state, and never in this area. As I watched the elk north of me, this fellow, below, walked by my camp to the south, much closer. On my drive down I counted 211 pronghorns between Casper and Rawlins (112 miles) and another 120 or so between Rawlins and Wamsutter (about 40 miles). The latter were along the interstate highway, where I rarely see them. But it is hunting season and these guys know that hunters are not allowed to hunt from the highways, so along the roads is a safe place to be in October. I thought the jaw might take most of the day to collect and I was right, and actually into Sunday morning (about 12 hours all together). I was slowed down by a fun development after I had plastered the jaw; the other jaw (left side) is there are well! In the photo below you can see it below the hammer. The articular surface is that blob of bone on the left end. Zooming in you can see a few teeth from the left side. In the above photo they are just below where the blue handle meets the metal hammer. Below is a close up where you can see two teeth. As you can see, the left tooth broke upon discovery so I did not expose the left teeth any more than this, but jacketed this whole pile of bones and rock. This almost last shot shows how far I had to haul it to the car. I use a dolly for this (also called a hand truck; no photo). After jacketing the specimen, the next step is to jam a few wide sturdy chisels under it to split the bottom layer of rocks so I can roll it over. Below is the thing rolled over. That is the left jaw showing on the bottom side. Next.. into the prep lab... And last but not least... on the drive out of the desert... about 10 miles of two track at slow speed, I ran in to this critter. This is almost the last of Wyoming's mammals I would expect to see out in the sagebrush. Yes, that is a moose. I used numerous not-for-family-viewing words when this guy showed up. What the heck is he doing out here? Moose like to live in watery, wet place with trees. I have seen them in several pine tree covered mountain ranges in Wyoming, as well as in Yellowstone National Park, and the forests of Maine and Alaska, but in the desert???!!! Apparently bulls do travel quite a ways in hopes of meeting new lady meese. Finding and collecting my best croc jaw in 30 years was one piece of excitement, but seeing the moose in the sagebrush made my weekend. And the moose did not make my arms and hands sore. Thanks for reading.... Happy fossiling.
  15. BellamyBlake

    Niger Crocodilians

    Hi, I won an auction for 4 Crocodilian teeth from the Elrhaz Formation of Niger. They're Lower Cretaceous. The seller noted that he could not identify them definitively as Sarcosuchus, or another Crocodilian from the locality. I hope these photographs are enough to identify them. Otherwise, I can get more photographs when they arrive. Largest one is 1.4" Thank you, Bellamy
  16. BellamyBlake

    Moroccan Vertebrae

    I have here three vertebrae from the Kem Kem of Morocco sold as "Dinosaur or Crocodilian." Is there any way to identify which of these they belong to, and if so, can they be narrowed any further? Thank you, Bellamy First one is 1.5" long and 1.5" wide
  17. BioBob

    Kem Kem femur?

    Here's a 45 cm / 17.7 inch long bone from the Kem Kem of Morocco. I don't know what animal this belonged to. Maybe a theropod or crocodilian?
  18. Way back in 2012 I found some blue crocodile bones in southwestern Wyoming and showed you folks some of them. I started prepping them back then and put them down for other projects. This spring as Covid19 kept me at home for a few weeks, I continued prepping this stuff. I wish I could tell you guys how many hours I have on this, but I am afraid to add them up. The first photo shows what this looked like at the end of 2012, until earlier this year. and as of today, it is done. I can ID most of these bones, except the long wide one on the top left of the block. I love the blue colors on these. In the nextfew days I will try to provide you guys with a key yo these bones, but if y'all want to try to ID them... the challenge has been set. (Note, some are turtle bones). This one is my favorite... cool bone, exceptional coloring... a cervical rib.
  19. Specifically on the east coast if possible, but west coast suggestions are welcome too. I've found videos of them being discovered such as the one bellow and I know which states they're in, but no specific location is given. Any and all help is very much appreciated, thank you.
  20. BioBob

    Flat elongated Kem Kem bone ID

    I've got this long flat bone from the Kem Kem with a wide base, it was presumably attached to a larger bone. It also seems like it's missing the tip. I thought it might be a small spinosaurid neural spine but it has a weird lump of bone on one side so it seems like it is something else. Is this lump a muscle scar? Or a healed wound? And could this bone be an odd spinosaurid neural spine or is it something entirely else?
  21. BioBob

    Kem Kem croc jaw fragments ID

    I've got five jaw fragments from the Kem Kem of which I think they are from crocodilians. Any ideas as to what genus or species these belong would be appriciated. 1. No idea what this jaw is from, but my best guess is some crocodilian. 2. I also don't know what this is but also probably some crocodilian. 3. This one has a hard layer of sediment covering it and it's missing the underside of the jaw. It looks a bit like the dented part of a Spinosaurus dentary but it's more likely also crocodilian. 4. Definitely crocodilian, has a typical croc texture (lots of dents). To me it looks like a right jugal with a part of the maxilla. 5. Also some crocodilian, resembles an Elosuchus jaw but it's pretty small so maybe a juvenile or some other croc. Have fun ID'ing!
  22. MaastrichianGuy

    Need help

    so i went to Orlando Science Center today for the Dino Digs exhibition but in Jurassic Ridge dig pit area i know that there is a Camptosaurus, Camarasaurus, Ceratosaurus and a Stegosaurus, but there is some species and genus of dinosaurs and other animals that i dont know what there like take for example the turtle shell, the alligator crocodile like animal fossil, the ankylosaur like fossil and that bone that i dont know what species does it belong to and that nest that i don't know which dinosaur does it belong to.
  23. CluelessAboutFossils

    Possible horse and crocodile tooth

    Found these two teeth in a creek in north texas. I believe the first may be a partial horse and the second a crocodile? Any help would be appreciated as always.
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