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Hi everyone, With this thread I wanted to start a discussion about what the feeding habits would be for most mosasaur species, how you think they would have fed. I personally love mosasaurs, they are one of my favorite prehistoric animals for a number of reasons and I’ve recently even bought my first Prognathodon jaw and I also live in an area that is not only known for their fossils but also for the discovery of mosasaurs. I’ve been doing a bit of reading lately about mosasaurs but I can’t really find anything difinitive on their feeding habits. Their diet yes. But exactly how they consumed their prey, not yet. I personally work with reptiles on a daily base, both with my job and with my hobby and I know quite a bit of different feeding behaviours with these animals. And as I was feeding the ball pythons (Python regius) at work I was kinda wondering, how would a large marine reptile like a mosasaurus eat? Would they just tear off chunks of meat like their closest living relatives the monitor lizards? Or would they perform deathroll like crocodiles do to tear of chunks of meat of their prey? Or when we talk about smaller prey, would they just swallow them whole like a snake does with it’s two lower jaws that can move independently, would a mosasaur be capable of that? Or would it be a mix of all those things or something entirely different? So I was just wondering what are your thoughts on the subject? I love to hear your theories and own finds and observations or if anyone ever read something in a scientific paper about the matter. I am dying to know your thoughts on the matter, as I want to learn as much as I can about these magnificent beasts!

I saw the first opportunity to get back to the North Sulphur River yesterday when the temps were going to be below normal for a change. There was a really nice breeze blowing down the river. Went to a spot on the river that I have only been to once before and access is pretty poor. Thanks to whomever added the rope, it helped, especially getting out! Quantity of the finds were low but the quality of what I found was great. Found the largest Tylosaurus tooth I have ever found with a diameter just under an inch. Also a shark tooth and one nice mosasaur vertebrae. I always enjoy the chance to find an artifact, ever though they are rare, or at least for me they are? I liked the way that JarrodB displayed his artifact recently, so I photographed this one the same and it turned out pretty good. Not sure the type, could be a Marshall, usually I find Gary's, so this was a nice departure. I will be watching for another cooler than normal Texas summer day to get back to this spot.

Good evening, I have acquired these three vertebrae from a creek in Travis county where I regularly find shark teeth and echinoids. I have my suspicions on what they might be but would like a definite ID, thanks. Disregard the background ha

So I've gotten myself into an extremely rare deal- a mosasaur and pliosaur tooth both in the US for a great price. The goodies arrived today, and I might as well show em off. First off, we have a mosasaur tooth from the Ozan Formation of Fannin County. Knowing that the NSR flows inside Fannin County and is also part of the Ozan Formation, This tooth is probably also from the NSR itself. Although the seller didn't have time to do a full ID on the tooth and simply labeled it as unidentified, by extensive comparing with other mosasaur teeth from the area, I can promptly assume that this is cf. Tylosaurus proriger, meaning that after 11+ years of my life, I finally have a T. proriger tooth . Next, we got a tooth that has been sought out for by countless collectors- a north american pliosaur tooth. As with other Texan pliosaur teeth, this one was from the Britton Formation near Dallas. Again, the seller labeled it as an unidentified pliosaur. This time though, IDing is difficult. Based on my knowledge, the two possible candidates are Brachauchenius lucasi and Polyptychodon hudsoni, which both have been found in this area. But as its hard to tell the difference between the two in teeth, I can't make a solid pinpoint. Maybe I'll just be biased and label it as cf. Brachauchenius lucasi because brachs are more iconic to me and due to the unstableness of the polyptychodon taxon. Although not as large as other's tylosaurus teeth, this one still kicks over 4 cm which is still pretty big to me. The pliosaur tooth is just over 2 cm, making it quite small but worth due to its rarity.

So I went to the Black Hills Insitute and I made a lot of photos, so I thought I'd share. The Black Hills Institute museum in Hill City is pretty small, it's just one hall. But this one hall is absolutely packed with stuff. This is also the home of the T. rex Stan. Many of the skeletons are casts, but there are plenty of real fossils here as well. The skeleton of Stan. This is the real skeleton and the real skull is placed beside it in the corner. But I didn't even notice that at the time. Skull of Torosaurus. Notice the holes in the frill. Triceratops doesn't have these holes in it's frill. Tylosaurus proriger. Another real specimen. Two Allosaurus skeletons. An Ornithomimid as well as Stan, the Senckenberg Edmontosaurus mummy and Tarbosaurus skull in the background. Skeleton of Albertosaurus, skull of Albertosaurus on the left and skull of Gorgosaurus on the right. A second T. rex skeleton. And a lineup of T. rex skulls in the background. Thescelosaurus and Pachycephalosaurus. Juvenile Edmontosaurus skeleton below the second T. rex skeleton. Cast of the Triceratops Raymond. Crestless Pteranodon on the left as well as a Nyctosaurus? arm/wing at the bottom. Dromaeosaurus in the middle between the legs of the Triceratops and a primitive Sirenian with legs on the right. Bambiraptor and Archaeopteryx skeletons. Foot and skull of Deinonychus and Herrerasaurus, Dromaeosaurus and Eoraptor skulls at the bottom. T. rex arm (cast of Sue) and brian endocast left. Nanotyrannus skull on the right. Mongolian Dinosaurs. Saichania and Saurolophus skulls at the top. Velociraptor skull and oviraptorid partial skeletons below that. Prenocephale, Oviraptor, Archaeornithimimus and Alioramus at the bottom. Tethyshadros top left, and Psittacosaurus nest, and skeletons on the bottom left. Brontosaurus leg in the middle and baby Apatosaurus on the right. Velociraptor and Protoceratops fighting on the far right. Edaphosaurus skeleton. And this is just a small selection of the photos I took. There's just so much stuff here and I only spent a few hours here. The gift shop is also worth a vist btw. I bought a rather nice replica of a tooth from Stan and a Thescelosaurus phalange.

Hi everyone. I recently bought this Mosasaur fossil that was labeled as a Tylosaurus Humerus, and i just wanted to check if this is indeed a humerus or another part of a mosasaur because looking at some pictures on the internet of mosasaurs (and Tylosaurs) it could also be a radius. It is 5 and a half inches in length and was collected in the Niobrara Formation in the Smoky Hill Chalk (Kansas). Since i am not an expert on mosasaurs (i am still learning about them) and my knowledge is limited, i was hoping someone who knows about mosasaurs could help out in confirming if this does belong to a Tylosaurus and if it is a humerus or a different part. I do trust the seller i just thought it would be worth posting on the forum to see what others think. Any help would be greatly appreciated.

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.