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Found 19 results

  1. Identifying Cretaceous Crocs

    Happy holidays all! I have a friend who has a croc tooth, I am interested in. I think it is from somewhere in Montana or Wyoming. It's a little over 1.25", including the root, which is mostly there (sorry, I don't have pictures). What suggests the species of croc, deinosuchus, brachychampsa, leidyosuchus, etc.? They all seem very similar to me. Is it impossible to ID or are there signs pointing towards one species? I am also curious, if the root is present, does that meant it came from a dead animal, or did they shed roots, too?
  2. Here's a third North American Alligatorid named this year, discovered in the Late Cretaceous Atlantic coast, from New Jersey to Mississippi. This follows a post I made on Friday, Dec. 18, concerning two others discovered this year: 3. Deinosuchus schwimmeri A systematic review of the giant alligatoroid Deinosuchus from the Campanian of North America and its implications for the relationships at the root of Crocodylia ABSTRACT: Deinosuchus is a lineage of giant (≥10 m) Late Cretaceous crocodylians from North America. These were the largest semiaquatic predators in their environments and are known to have fed on large vertebrates, including contemporaneous terrestrial vertebrates such as dinosaurs. Fossils have been found in units of Campanian age from northern Mexico to Montana in the west and Mississippi to New Jersey in the east. Three species have been named, and recent consensus suggests that they represent a single, widely ranging species. The authors studied newly collected material from western Texas and increased sampling from throughout North America to review species-level systematics of Deinosuchus and help refine its phylogenetic placement among crocodylians. Deinosuchus from eastern and western North America can be consistently differentiated and represent different species. A phylogenetic study is conducted including new character states. This work reinforces the identity of the ‘terror crocodile’ as an alligatoroid. Reference to the holotypes indicates that the generic name holder, Deinosuchus hatcheri, is extremely incomplete. As a result, the three known species of Deinosuchus cannot be differentiated. To ensure nomenclatural stability, the type species for Deinosuchus should be transferred to Deinosuchus riograndensis, a species known from multiple mostly complete individuals. Additionally, Deinosuchus rugosus is based on a holotype that is not diagnostic, and a new species, Deinosuchus schwimmeri, is named to encompass some specimens formerly assigned to D. rugosus. https://www.tandfonline.com/doi/full/10.1080/02724634.2020.1767638 News article: http://www.sci-news.com/paleontology/deinosuchus-schwimmeri-08730.html Image credit: Cossette and Brochu. doi: 10.1080/02724634.2020.1767638.
  3. Fresh out of the Aguja, found this crocodilian tooth. I know Deinosuchus is present in the formation; I thought it could be based on the strong striations and stoutness? Or can it only be called Eusuchia? It's about 5 mm in length: Thanks!
  4. New study confirms the power of Deinosuchus and its 'teeth the size of bananas' by Taylor & Francis The open access paper is: Cossette, A.P. and Brochu, C.A., 2020. A systematic review of the giant alligatoroid Deinosuchus from the Campanian of North America and its implications for the relationships at the root of Crocodylia. Journal of Vertebrate Paleontology, p.e1767638. Yours, Paul H.
  5. 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.
  6. 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
  7. With the current pandemic I decided now was as good of a time as any to get some matrix from the Aguja Formation with the help of PaleoTex! This turned out to be a great decision as I was extremely lucky, finding about basically everything I wanted to, and more in only 5 pounds of matrix! I'll be sure to post pictures but I got numerous amia and gar teeth, along with atleast 36 gar scales. Tons of Crocodile teeth including a large Deinosuchus tooth. Several shark teeth and a partial hybodus spine, also several brackish water pycnodontid teeth and tooth pallets. 4 fish or salamander jaws with teeth. Regarding dinosaur teeth I got 17 Hadrosaur teeth, including 2 partially rooted. A partial Ankylosaurus tooth. 4 Therapod teeth including a perfect Saurornitholestes tooth and a Premax. My favorite find however was the Paronychodon tooth I found! I'll be posting that picture first! Highly recommend this matrix, but I was also told that most people don't find all this stuff, so keep that in mind aswell. Stay safe! Happy hunting! (ID's for these specimens done by lab manager)
  8. These are all crocodile teeth from the Phoebus Landing site on the Cape Fear River in NC. Apparently there were 3 species of croc. a relatively small one, a medium size one and the giant Deinosuchus which could be 35 feet long. Dinosaurs were a common prey for them. These are all from the Upper Campanian, Upper Cretaceous Black Creek Group about 78 ma.
  9. I have been asked this question many times. The non avian Dinosaurs died out the the end of the Mesozoic but many other animal groups survived. Among them were the Crocodilians. And people ask me all the time how they survived while the Dinosaurs didn't. So this has inspired me to make my first video on my dedicated Paleontology channel, Paleo Analysis. I am making these videos for the purpose of education so feel free to share this video as well as future videos! https://youtu.be/Gan8Vu4oM0w
  10. Deinosuchus?

    Does this tooth fit the Deinosuchus label? It's about 2 inches, and recovered from Aguja, West Texas.
  11. Hi all, I have a mysterious croc tooth that needs identifying. It measures 7cm in a straight line, with a crown length of 3cm. It was found in a backwater near Savannah, Georgia. It came out of an old stream bed eroding out. The area is normally a Miocene deposit where there are Gavialosuchus americanus but the original owner (who is a fossil croc expert) sincerely believes it's something else as there are supposedly earlier deposits there as well. He thinks it is from the lineage of Deinosuchus. Has anyone seen such croc/alligator teeth in Georgia? Has anyone heard of late Cretaceous deposits near Savannah? Thank you.
  12. Cretaceous alligators

    From the album Dinosaurs and Reptiles

    A - Deinosuchus riograndensis, Aquia fm, Texas B - Brachychampsa montana, Hell Creek, South Dakota
  13. This past weekend my wife and I, a few friends and a few other fossil hunting fanatics braved the sweltering heat and humidity that is eastern NC summer. Forecast was for temps in the low - mid 90s F, high humidity and 50-70% chance of showers and thunderstorms. This was our 3rd attempt at accessing a Cretaceous deposit along one of the rivers after 2 unsuccessful attempts earlier this spring due to high water. With many of the eastern NC rivers running higher than normal so far this summer, we wanted to take advantage of a lull on this particular river, since there is no guarantee a tropical storm/system won't flood us out for an extended time period at any point from now through late fall. Even though we knew we were going to be hot and sweaty, harassed by mosquitoes, biting flies & gnats as well as the possible snake or 2, we had to take what low water we could get. We were all drenched in sweat (and sand / mud) the entire 2 days we hunted. Coming along on its inaugural fossil hunting trip was a new photo scale cube custom made by Ray/ @aerogrower for Mrs. SA2, in pink. She was quite surprised when a box addressed to her showed up a few days before the trip and it contained her very own cube, in pink. When I explained that its a 1 of a kind, she was even more excited. Even more importantly for me, Mrs. SA2's new, pink cube proved to have "the magic" that so many TFF members have come to expect and enjoy in Ray's cubes. Here are a few photos of it beside the massive, almost complete Deinosuchus rugosus vertebrae I found on Sunday morning. These photos were taken right after it was found and given a preliminary rinsing off. Note how nice the cube looks with pink paint. Mrs. SA2 was not impressed with my muddy finger prints on her new cube and promptly cleaned it off before the last photo. It is by far the most complete and largest Deinosuchus vert in our collection. Once I finish cleaning it and the other goodies we found, I will post some more photos. Quite a few teeth and verts of Deinosuchus and other crocodile species were found by the group as well as the normal massive amount of Squalicorax, Scapanohrynchus and Carcharias teeth. Numerous Cretaceous fish teeth and even a few Hadrosaur teeth and 1 theropod tooth were also found over the weekend. What we didn't expect when we made the trip, was for the wildlife to be so determined to keep the fossils away from us. Here is a photo of a big crayfish holding onto a sharks tooth. Determined little thing so we traded him a clean getaway for his tooth. One of our group even snapped this photo along the river bank while she was scanning for fossils. Of course, its all fun and games until you slip on the sloping, wet clay and fall face first at the snake you are attempting to photograph. (YES, that really happened.) More to come......
  14. This past weekend some good buddies and I headed down to a river in SE NC which is known for producing cretaceous fossils in a lag deposit among other things. The group consisted of folks from NC, VA, MD and PA. Weather forecast Saturday for central/eastern VA and NE NC was really BAD, but forecast was great for where we were headed, mid-80s, mostly sunny with a nice breeze. Even more exciting and important to us (especially at this time of year), the river level was low enough for us to access the lag deposit material. In the field with us for the first time were a few of Ray's @aerogrower "magic cubes." They came in the mail about an hour before I headed south with the boat and I was hoping they would bring us all good luck. Obviously, they did that and more! I just wish Don @sixgill pete could have joined us. Maybe next time. Most of us met Friday night at the hotel, had a great dinner at a local steak & seafood place across the street and then hung out chatting and catching up about life since our last fossil hunting trip together. Two of our group were still gun shy of the hotel from their encounter with "bed bugs" during our December trip, so they drove in early Saturday morning to meet us. Saturday morning started out with perfect weather and eight (8) very excited fossil hunters. Getting the boat in at the ramp was interesting to say the least, given its shad season and the fishermen were everywhere on the ramp, dock, etc. They didn't like having to stop or move even for just a few minutes so we could launch. Water temp was in the low 70s and we headed out to our intended location. When we got there, we perused the area, discussed and debated what was the best strategy and where to start. 2 others started a spot to the right of the boat and I started a spot to the left of the boat. My very 1st screen produced a bunch of sharks teeth and 2 deinosuchus vertebrae, 1 with very fresh shovel marks, if you know what I mean. I will try and post photos of the shark teeth & vert, coprolites, misc. croc teeth and other stuff this evening. One of our group moved farther to the left and started exploring and surface collecting. Dang if he didn't come walking back up with a nice deinosuchus tooth and other stuff, right off the beach. Here's a photo of some of @Daleksec and his dad's croc/deinosuchus teeth. They have quite a few more. Note one of Ray's "cubes" getting its inaugural photo op. Eventually, the guys to the right of the boat gave up and helped explore my area. They are nice folks and good friends, so I only minded a little. :-) j/k So, wouldn't you know that it would have to be one of my buddies who pulled this beauty of a Hadrosaur vert out. This particular friend is known by all to have a lucky golden horseshoe in a certain place. While all this was going on, @Daleksec had walked farther down to the left where his dad was exploring and found this vertebrae exposed in situ. Note, Ray's @aerogrower "magic cube" making another appearance in this photo. As you can tell, the vert came out in several pieces despite our best efforts. Daleksec will put it back together as best as possible and we'll post more photos of it. During the course of Saturday, one of our friends found 2 nice Theropod teeth with one being about an inch and one being about 1/4 inch. Both were serrated. I will add photos once they are cleaned up. Besides the multitude of croc and shark teeth and the 2 deinosuchus verts I found early on, one of my prizes from Saturday was this gorgeous, but yet suggestively shaped object. :-) The laughter and stories going around about my coprolite find are not fit for printing on a family oriented website. We finally finished up hunting/collecting about 415pm Saturday with most of us filthy and sore but VERY happy as we headed back to the boat ramp. Saturday evening was another night of hanging out, chatting and a great dinner with good friends. Though, we did go to bed much earlier than Friday night and Ibuprofen was definitely on the menu. Sunday morning we woke to drizzle, low-50s and breezy. It was going to be a cold/wet ride in the boat back to our spot. Not to mention, at least one thunderstorm had come through in the early hours of the morning. Forecast looked OK though with a little drizzle but most of the rain holding off till after 1pm. We got back to our spot and started at it again. Quite a few more deinosuchus teeth/verts were found along with many more sharks teeth and other assorted goodies. Given the awesome and spectacular finds everyone else had on Saturday, I rubbed my newly acquired "magic cube" for some personal good luck. About an hour into the hunting, the magic cube came through for me. While working through the matrix I heard this distinct "chunk" sound of metal hitting on something very solid. I should have snapped a photo right then but there was no way I was vacating the spot so one of my friends could jump in given the heads turning around at the "chunk" sound. I probed a little more and pulled this beautiful hunk of bone out. This is the very first Hadrosaur vertebrae I've ever found. I've been present when several others were found (by the friend with the golden horseshoe), and he even found a very nice dino toe bone in front of me. But this one is mine. After all the excitement and joking about my "happy" dance died down we went back to the task at hand. And, of course it didn't take long for the golden horseshoe to show up AGAIN!!! He pulled this Hadrosaur tail vertebrae out about a foot from where I had found mine. The cube was working it's magic. About 1230p it started sprinkling and was threatening to turn into a steady rain. We packed up and headed back to the ramp. Photos of all 3 Hadrosaur verts in the next post.
  15. Hi all, I have a set of three lovely reptilian teeth from Barbour and Russell Counties of Alabama that I need help identifying. First up, the large mosasaur tooth. The size and general shape of this points to Tylosaurus, Second, the smaller mosasaur tooth. The size and shape points either to Platecarpus or Clidastes propython. I can't decide. Third, the croc. As far as I know, Deinosuchus and Bottosaurus are the only crocs from this area. The tooth looks like Bottosaurus to me. I'm unfamiliar with teeth from this locality, so I'd appreciate any help in getting them identified.
  16. Deinosuchus Teeth

    From the album Reptiles & Marine Reptiles collection

    Juvenile Deinosuchus Teeth Deinosuchus rugosus Locality: Bullock County, Alabama, USA Geological Age: 73-80 MYA
  17. From the album Giant Crocodiles

    (From left to right) Elosuchus from El Begaa, Taouz, Kem Kem beds (3.03 inches long) Kaprosuchus saharicus (BoarCroc) from Echkar Formation, Niger (2.10 inches long) Deinosuchus rugosus from Monmouth County, New Jersey (1.50 inches long, 0.96 inches width)
  18. Juvenile Deinosuchus tooth

    From the album Giant Crocodiles

    Deinosuchus rugosus from Chattahoochee River, Bullock County, Alabama. 0.88 inches long