Search the Community
Showing results for tags 'tyrannosaurus'.
-
From the album: Hell Creek / Lance Formations
Tyrannosauridae (Cf. Tyrannosaurus rex) Hell Creek Fm., Wibaux Co., MT, USA This minute tooth is indeed Tyrannosaur: the mc/dc serration densities are virtually identical, and the denticle shape is not like those of Dromaeosaurids. It also has a slight pathology near the tip. -
Sales just concluded a min ago. I definitely wasn't expecting it to reach this insanely high amount. No word yet AFAIK on whether he's going to a private collection or museum Is this the highest a dinosaur has ever been sold for? I wonder what precedence it'd set for fossils and paleontology moving forward On the pro side, it'd encourage more folks to go out there looking for fossils and possibly finding rare and important finds. On the con, more fossils might be priced out of the reach of museums
-
Hi, Any thoughts on this tooth? It is listed as a Nanotyrannus tooth, from Hell Creek Formation, Powder River County, Montana, USA. 0.78 inch. It's labelled as Nano, but the base is quite round--isn't that a sign of Rex? Any thoughts are appreciated. Thanks
.thumb.jpg.e7a2c80e1c61491f602dc2041dc3bd2a.jpg)
.thumb.jpg.e5a9180a4aa55cd12f99ef933c0b30cd.jpg)
.thumb.jpg.53e008e1655339eec414e79a4db338aa.jpg)
.thumb.jpg.273112d81dcb78fec69096a0ed82a157.jpg)
.thumb.jpg.9de2b6f22958319254b630d201be25d9.jpg)
.thumb.jpg.550bd446e45c902500938f5a5f8334cc.jpg)
.thumb.jpg.f460a924c641db3303f8c28d1f4e4bc6.jpg)
.thumb.jpg.5f22ee534afee286cd3ee2a47e67bd9e.jpg)
.thumb.jpg.021f862a471e6b032c3c1692819f2155.jpg)
-
Identification This is a classic T. rex tooth. It's clearly Tyrannosaurid by its robusticity, similar serration densities on each carina (mesial carina counted by the "roots" of the denticles as they are completely worn off), and chisel-shaped serrations. Those qualities with its locality and formation mean it must be the one and only. Notes The Crown Height Ratio (CHR) suggests a posterior position (it's short and stout). There's evidence of wear on the tip and mesial carina.
-
Identification Tyrannosaur teeth characteristically have similar serration densities on each carina, with chisel-shaped denticles. Though small, this tooth matches those qualities, and doesn't resemble other smaller theropods like Dromaeosaurids. Identified as Cf. T. rex based on its similarity to another, larger tooth in my collection. Notes This tooth is from a juvenile individual. Serration densities illustrated in the above photos. There is a slight pathology (bend) near the tip.
-
- 1
-
-
- hell creek
- hell creek formation
- (and 8 more)
-
From the album: Hell Creek / Lance Formations
Tyrannosauridae (Nanotyrannus-morph) Hell Creek Fm., Powder River Co., MT, USA A classic Nanotyrannus Tyrannosaur tooth: compressed and blade-like. Exceptional preservation, with a minor wear facet near the tip on the lingual side (indicating it's from the left maxilla). I really like the color.-
- 2
-
-
- hell creek
- hell creek formation
- (and 8 more)
-
I have this tooth that i believe to be a small nanotyrannus but i just want to get confirmation so let me know what you think everyone. Its from the Hell Creek Formation. Garfield Ct. Montana. Its CH is 11 mm Serration count: Distal 12 per 3 mm Mesial 15 per 3 mm The base of this tooth is beat up so its impossible to see if it would have had that rectangular pinch that is characteristic of nano teeth. There seems to be no twist of the mesial carinae In my opinion the serrations look peg like as seen in nano teeth.
-
I'm collecting Hell Creek Dino teeth and this is in the new collection: rooted Edmontosaurus tooth. The tooth measures almost 2 inches and has a evidence of repair at the middle but still looks great. Since it is diamond shaped I guess this is a dentary tooth. And this is current progress of my Hell Creek Collection. I have two Tyrannosaur (Nanotyrannus, if you think it is a valid genus), a Ceratopsian, and a Edmontosaurus. The lower right corner is still empty. I have an Nodosaur tooth but it is too small to fill the space.
- 1 reply
-
- 6
-
-
- edmontosaurus
- hell creek
- (and 1 more)
-
From the album: Dinosaurs
-
Juvenile T. rex maxillary tooth basal cross section
ThePhysicist posted a gallery image in Member Collections
From the album: Dinosaurs
Tyrannosaurus rex Hell Creek Fm., Wibaux Co., MT, USA Minor compression, common in maxillary teeth. It closely matches my larger juvenile T. rex. -
From the album: Dinosaurs
Tyrannosaurus rex Hell Creek Fm., Fallon Co., MT, USA Not in the best shape, but a clearly robust tip with some feeding wear. -
From the album: Dinosaurs
Tyrannosaurus rex Hell Creek Fm., Wibaux Co., MT, USA This is a juvenile Tyrannosaurid tooth. The serration densities are similar on each carina, the serrations are chisel-shaped and robust, the tooth is not recurved, and the mesial carina is straight. It closely resembles my larger T. rex maxillary tooth in cross section. -
Juvenile T. rex tooth mesial serrations (2)
ThePhysicist posted a gallery image in Member Collections
From the album: Dinosaurs
-
T. rex posterior tooth basal cross section
ThePhysicist posted a gallery image in Member Collections
From the album: Dinosaurs
-
Hi y'all, got this small theropod in the mail; I bought it suspecting it was Tyrannosaurid. Upon in-hand inspection, I believe that suspicion is confirmed. It bears close resemblance to one of my larger juvenile T. rex maxillary teeth. It also appears to have a slight pathology near the apex - a slight bend. @Troodon Tyrannosauridae Hell Creek Fm., Wibaux Co., MT, USA CH: 9 mm Mesial serration density: ~ 5.3 / mm Distal serration density: ~ 5 / mm Serration densities: Serrations: Here the pathology is more evident: Base (comparison with other T. rex maxillary tooth, right):
- 7 replies
-
- 1
-
-
- hell creek
- hell creek formation
- (and 8 more)
-
From the album: Dinosaurs
Tyrannosauridae Hell Creek Fm., Powder River Co., MT, USA ~ 3.6 / mm Notice that the enamel is still clear, with the dentine visible underneath. If Nanotyrannus is valid, then this is Nanotyrannus. -
From the album: Dinosaurs
Tyrannosauridae Hell Creek Fm., Powder River Co., MT, USA If Nanotyrannus is valid, then this is Nanotyrannus. -
From the album: Dinosaurs
Tyrannosauridae Hell Creek Fm., Powder River Co., MT, USA If Nanotyrannus is valid, then this is Nanotyrannus. Note that the serrations wrap around the tip ("apex") of the tooth as is common in unworn Tyrannosaurs. -
Hello! I'm a new member and I discovered this forum recently. I've already learned so much browsing threads. I'm not sure if it'll be possible, but I was hoping that I could get some help identifying a section of fossil scapula that I came across and was thinking of purchasing. The seller doesn't have much information on it besides it being a Hell Creek find in South Dakota. He thinks it may be from a tyrannosaur. Pictures attached, any thoughts would be great!
-
Complex neurovascular system in the dentary of Tyrannosaurus
AlexSciChannel posted a topic in Fossil News
I haven't seen anyone post about this study. It seems pretty fascinating. And it may spice up the lip conversation a bit. The problem is I don't see anyone talking about it. It was published by our friends from Japan, Soichiro Kawabe & Soki Hattori, both of whom work for Fukui Prefectural University as well as the Fukui Prefectural Dinosaur Museum. Specimen Information: The material studied, FPDM-V-9767 is a single left dentary from a Tyrannosaurus rex found in Montana. It was originally owned by commercial fossil company PaleoAdventures before the original specimen was sold to the Fukui Prefectural museum as a permanent member of the collection to be studied. The cast can be bought here: https://www.paleoadventures.com/online-store/p/cast-pathologic-t-rex-left-dentary-no-teeth-as-found The dentary has pathologies on the anterior end including a bite from another tyrannosaur and what seems to be a tooth infection. And now for the paper, The Abstract: The morphology of the neurovascular canal in the jaw has been analysed in several fossil reptiles, including theropod dinosaurs. However, the details of the neurovascular canal in the dentary of theropods have not been fully elucidated. In this study, we described the well-preserved dentary of Tyrannosaurus rex, analysed the morphology of the neurovascular canal in the dentary using computed tomography techniques, and compared its distribution pattern with other dinosaurs and extant crocodiles. The results show that the neurovascular canal in the dentary of Tyrannosaurus exhibits a rather complex branching amongst the sampled dinosaurs, and that the complexity is comparable to that of extant crocodilians. The complexity of the canal branching is likely related to the high tactile sensitivity of the dentary, suggesting that the jaw tip of Tyrannosaurus may have played an essential role as a sensitive tactile sensor. Full study: https://doi.org/10.1080/08912963.2021.1965137 Let's have some conversation. What does this mean about T. rex and it's behavior interactions? Also since the sensory system is similar to that of crocodilians, does this confirm Thomas Carr's hypothesis that tyrannosaurs were lipless?
-
- 1
-
-
- crocodile sensory system
- lips
- (and 2 more)
-
I recently saw this 2” tooth labelled as Tyrannosaurus rex from the javelina formation in Texas. How does it look? I am under the impression that this is very rare so please correct me if I’m wrong.
-
I was wondering if members with experience might give their opinion of this vertebra and to which dinosaur does it belong? I'm about to buy it. Location: North America, Montana, Powder River, Hell Creek Formation. Dimensions: 15.2 cm x 11.4 cm
-
Only other info I know is it's supposedly from Liberty County, Judith River Formation. About 2" long. Doesn't look like a carch tooth so I'm hoping it's actually T-rex.
-
This tooth is Tyrannosauridae tooth from china! I think it's Qianzhousaurus or bigger tyrannosaurid(Tarbosaurus or Zhuchengtyrannus). Size 3.1 inches. Very rare and big size. Discovered area : Nanxiong Formation, Jiangxi Province, China
- 9 replies
-
- 2
-
-
- dinosaur tooth
- tyrannosauridae
- (and 1 more)
-
I found this tooth that is claimed to be a tyrannosaurus tooth it has a bit of restoration but am not sure if it's specifically a tyrannosaurus tooth so what do you all think? Here's a photo before the resto
.jpg.60c2f5097d521196a3695286885eaaae.jpg)
.jpg.9442a791f3013838b0a81771673337f3.jpg)
.jpg.4f62a7f20cb7812f6180ffe834f5a121.jpg)
.jpg.2a33d2c8968b932f38a88eea5f0f78ab.jpg)
.jpg.c5616013c7294b1266a90bac1956a39e.jpg)
.jpg.9dc6d8abe9da6cd73fc8f8037839284b.jpg)
.jpg.f96e5698d27072efc8cff859d5754d64.jpg)
.jpg.518c230870cc8c9f6a7698fb9e878e19.jpg)
.jpg.593143ae77c26e314f54814448ad990a.jpg)
