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Showing results for tags 'tyrannosaur'.
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From the album: Dinosaurs
Comparison of Tyrannosaur denticles (serrations) from the Hell Creek Formation. All of the images are set to the same scale Some differences are likely associated with position in the mouth and/or feeding wear. So, this may not be a perfect illustration of purely ontogenetic variation. The adult T. rex denticles are from an unknown position and carina (being from a tooth fragment), the juvenile T. rex denticles are from the distal carina of a right (rear?) maxillary tooth, and the infant T. rex denticles are from the distal carina of a posterior tooth. The Nanotyrannus denticles are also from the distal carina of a posterior(?) tooth. The Nanotyrannus denticles are noticeably different. That could be because of lack of wear, age of the animal, because it may be a different species, or a combination thereof. -
...so I headed out to find some Dinos. All fossils dinosaur park fm. Got some new land permissions so I have lots of area to wander. Here’s some notable finds from today. Large hadrosaur (or possibly ceratopsian) foot bone, large hadrosaur foot claw, tyrannosaurid caudal vert, possible tyrannosaurid toe bone, and some indet. fused verts. These will be pictured, there were various other verts and smaller bones found that I may post later.
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- ceratopsian
- claw
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Greetings, I have now received some pieces of bone, it should be pieces of bone from the Tyrannosaurus' head ... it should be one individual ... if anyone can confirm or refute it, or even know which part of the skull it is. ..I would be very grateful ... for some pieces, I already have an idea where they fit ... I photographed every piece of bone 5 times ... you can see a part of the surface of the bones at each one .. I just don't know if I'm wrong, so I'd rather ask here, the more erudite ones ... thank you for your time
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I have here five Therapod teeth from the Judith River Formation of Hill County, Montana. Four are partials, and one is a small and complete. They were identified as Tyrannosaurs, but I'm wondering if that's accurate, and if it's possible to narrow them down further. It's probably a long shot, but I felt it would be useful to ask here where there are many more knowledgeable about theropods than I am. I've offered different angles, sizes, and serration counts. Thank you, Bellamy
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- daspletosaur
- gorgosaurus
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Please identify this tooth, unfortunately I do not have more photos available, nor the location of the find, or any information, but I think that identification is possible anyway ... maybe the color, the guidance of the curve will reveal something ... thank you for your time.Luk
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Hi everyone, tonight I want to share with you one of my favorite finds from the summer, this absolutely tiny theropod tooth I found looking through anthill matrix in Wyoming's Lance formation. It's currently the smallest theropod tooth in my collection and it's always an interesting contrast when compared to my largest personally found tooth (a Tyrannosaurid from Judith River). It's about 3 mm in length and a bit over 1.5 mm in width. I believe the serrations have been worn off as they are incredibly faint in some areas and absent in others. I'm not sure if the way the light gleans off the enamel indicates that it would be any particular species, whether it looks more like the result of the pinched base typical of Nanotyrannus teeth or would count as ridges as seen in Acheroraptor. I would like to know the opinions of my fellow members on it's potential identity and the likelihood of it being from a young juvenile/infant/prenatal individual. Shot in hand from the field: Shots at home: @Troodon @jpc @Runner64 @Jaimin013 @hxmendoza
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- 3
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- dromaeosaur
- infant?
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From the album: Dinosaurs
Species: Tyrannosauridae indet. Age: Cretaceous (Campanian), c. 75 million years ago Location: Two Medicine Formation, Montana, United States Pretty fragmentary tooth, but cool to have nonetheless. There are three species of tyrannosaurids present in the Two Medicine Formation (Daspletosaurus horneri, another currently unnamed species of Daspletosaurus, and Gorgosaurus libratus), so the tooth is not identifiable down to the species or genus level.- 1 comment
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- cretaceous
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Hi I’m looking into buying these three teeth and am wondering if they look good to anyone? Like restoration, repair, composite? And if it’s possible to identify the species? Thank you for any feedback! baby Diplodocid indet, Morrison Formation Theropod indet, Morrison Formation Tyrannosaur indet, Judith River Formation
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- allosaurus
- diplodocus
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Dimensions: CH = 41 mm CWB = 10 mm CBL = 16 mm MC = 18 denticles/5 mm DC = 14 denticles/5 mm DSDI = 1.29
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- cretaceous
- dinosaur
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Tyrannosaur at the Tyrrell
dinosaur man posted a topic in Partners in Paleontology - Member Contributions to Science
I recently learned that the Tyrannosaur femur I discovered in Dinosaur Provincial Park in 2018 (the same day I discovered my Hadrosaur Trackway, actually only 10 minutes apart from each other) is at the Royal Tyrrell Museum. I originally reported it in late 2018 and the Dinosaur Provincial Park team collected it and brought it to the field station, they then gave it to the Tyrrell and it’s been there since. But the thing is I never knew this until recently as I asked Caleb Brown about it when I was asking him about the Hadrosaur Trackway, he said it was collected by another group which turned out to be the Dinosaur Provincial Park Group. It used to be called DPP.2018.062 when the Dinosaur Provincial Park team collected it, but it is now known as TMP 2018.012.0088! I will give updates on this specimen like what I do with the Hadrosaur Trackway contribution topic. I am so excited to have two scientific dinosaur contributions to my name! And thanks to @musicnfossils and @Alex Eve without them I would of never known about this!
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- 14
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- contribution
- dinosaur park formation
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Hi I decided to make a post about my main research project right now on Campanian Tyrannosaurs specifically Daspletosaurus. Today I have found something to tell teeth from the Judith River Formation and Dinosaur Park Formation. This could also do with the Tyrannosaurs prey or locality. I found out that Judith River Formation Tyrannosaur teeth serrations are more circular and more round compared to the same time Dinosaur Park Formation Tyrannosaur teeth serrations. The Dinosaur Park Formation Tyrannosaur teeth serrations are more longer skinner and more chiseled like but not like other Tyrannosaur teeth from other areas like T. rex’s teeth serrations. Certain Tyrannosaurs in different areas and times would/could of had unique serration morphology probably dew to there prey. I did this on multiple teeth from the Judith River Formation and Dinosaur Park Formation to strengthen my hypothesis. Any opinions on this topic would be great. I will post more on my research here on this and other topics on the Tyrannosaur/Daspletosaurus. I have been doing research on this Daspletosaurus from the Dinosaur Park Formation and it’s close relatives because it was the first dinosaur fossil I’ve ever found. I’ve liked fossils and dinosaurs since I was 2 but in 2018 I went to Alberta and found my first dinosaur fossil which was a fossil from the Dinosaur Park Formation Daspletosaurus sp. Thats why I have been researching on this topic. The serrations I found on Dinosaur Park Formation Tyrannosaur teeth. The serrations I found on Judith River Formation Tyrannosaur teeth.
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Hello, Been offered this pair of teeth from Two Medicine--they are labelled as Albertosaurus juvenile, but, unless I'm mistaken, Alberto isn't from there? Could they be juvie Daspleto/Gorgosaurus, or are they raptor teeth? I am guessing it would be difficult with these to narrow it down beyond Tyrannosaur or raptor. I've got a pic of the bases if that helps. They are very small --- black one is 8mm, white one is 1cm. Black one is I think a premax tooth. One pic shows 3 teeth--but it's the middle black and the white one on the right that I am interested in and requested extra photos of. Thanks for any help.
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I was out yesterday doing a final hunt before the snow sets in here in Montana on the Judith River formation and found this claw along with this vertebra, no other bones around so possibly from the same animal. I have found theropod claws that are much smaller and this one is huge when compared. I searched for the tip but sadly couldn't find it. I assume because of the size it would be a tyrannosauroid but not certain. Can it be determined to be a toe claw or hand claw? Is the vertebra identifiable? @patrickhudson
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- dinosaur bones
- t-rex claw
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Hello, anyone able to help with this one? Going through my old "fossil" folder, I found this one I got 10 years ago bought as "Albertosaurus" from Lance Formation. Now, looking online I'm seeing Albertosaurus as not being from Lance. Indeed, only valid Tyrannosaur from there is looking like Rex Would this be better labelled as Undetermined Tyrannosaur, a T rex, or has Albertosaurus actually been found there? Apologies for pictures. The actual fossil is in storage box at my UK home, I'm in Taiwan and wont be going back there until COVID is over. So, hopefully these two older pics are enough to narrow it down. There are some serrations, which I believe seperates it from the juvenile teeth usually sold as Aublysodon?
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I bought this tyrannosaur tooth a while back and it says it’s a albertosaurus, gorgosaurus, or daspletosaurus. Is there anyway to narrow it down any further? It says it was found in the Judith river formation of eastern Montana and it measures just over an inch. Any and all help is appreciated.
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My son found a long skinny tyrannosaur tooth on South Saskatchewan River, West of Medicine Hat (oldman formation? Formost FM? DPP?) We've found all sorts of tyrannosaur teeth - short fat ones, short wide narrow ones, long fat ones, long narrow ones (Richadoestia), and all sorts of variations of curves or straight Species, age, and tooth position may all be factors. I'm just wondering if anyone has more info? This tooth is relatively narrow and thin for its length. I can post other examples of teeth found in the same area that are quite different from one another. I believe these may be examples of gorgosaurus or daspletosaurus as they were found in the DPP formation
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- alberta
- daspletosaurus
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Hey guys, I found this tooth that has what looks to be fossilized with a slice from a bite. I'm not sure if that is what it is. Has anyone else ever seen this? It's a first for me.
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A response to Woodward et. al 2020's refutation of Nanotyrannus. Argues that specimens BMRP 2002.4.1 and BMRP 2006.4.4 fall outside the growth curve of Tyrannosaurus. https://advances.sciencemag.org/content/6/1/eaax6250/tab-e-letters
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- cretaceous
- juvenile
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I'm hoping someone can provide a little information about tyrannosaurs of the Two Medicine. Somewhere I thought I picked up that Daspletosaurus and Gorgosaurus were the only ones found in Montana (with Albertosaurus being absent in MT). But now I'm not finding that, so I'm wondering if I just imagined it. Additionally, I keep seeing conflicting information as to when Daspletosaurus and Gorgosaurus lived (I'm seeing 83 Ma but other places 76 Ma with several other times around there). Can anyone share an article or two that describes the current understanding of when these animals lived?
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From the album: Dinosaurs
A tooth from a juvenile Nanotyrannus lancensis. Only missing the very tip.-
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- dinosaur tooth
- hell creek
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Hello all, I collected this tooth last weekend along the Red Deer river in Alberta, and would like to know if it's possible to differentiate it as either A. sarcophagus or T. rex. I'm about 90% sure that it's from a deposit of the Horseshoe Canyon Formation, but the region also has exposures of the Scollard which introduces the possibility that this is from Tyrannosaurus. I had to leave the tooth with a friend until I can apply for a disposition certificate, so I can't get any additional photos, but I made a point to get pics of the major diagnostic features used to ID theropod teeth. Denticle spacing is 0.5mm, or 2 per millimetre: Thanks.
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- campanian
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Hi, I’ve been working on my project for a while now and I’ve decided to ask everyone to show there Alberta Tyrannosaur fossils! And if it’s teeth would you be able to put the Mesial and Distal serration count over 2mm. Thank you!
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Hi I’m wondering what are your thoughts on this Tyrannosaur tooth? It’s 1.25 inches and is from the Dinosaur Park Formation of Alberta.
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Hello I recently got these two Tyrannosaur tooths form new mexico close to Farmington what could they be form? The more complete one is a inch long the other is half inch.
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- new mexico
- tooth
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I was going to wait until tomorrow night to post the 3rd tooth but i got around to taking some pictures and measurements now so here is Unidentified Theropod Tooth #3. Judith River Formation Hill County Montana Crown height 15 mm ( broken base ) Serration count 17 per 5 mm distal 20 per 5 mm mesial I do not see a twist in the mesial carina This tooth is more compressed than the other two teeth the first being dromaeosaurus. Saurornitholestes perhaps?? @Troodon
