Search the Community
Showing results for tags 'acheroraptor'.
-
From the album: Hell Creek / Lance Formations
Microfossils are the means by which we can most fully appreciate the diversity of a past ecosystem. From salamanders to Tyrannosaurus, an ancient river captured and preserved dozens of species that lived in Montana 66 million years ago, at the terminus of the time of dinosaurs. In this small collection alone, I count at least 27 species of dinosaur, lizard, crocodile, fish, shark, salamander, turtle, mammal, and mollusk.-
- 1
-
-
- hell creek
- hell creek formation
- (and 10 more)
-
Fast. Intelligent. Deadly. The "Raptor" is perhaps one of the most famous dinosaur today thanks to Jurassic Park. To many people's surprise however, raptors are heavily feathered and nimbler than movies would have you believe. The Jurassic Park Velociraptor was merely the size of coyote in real life! In fact, their proper family name is 'Dromaeosaurid'. The largest species was Utahraptor, and it grew to the size of a grizzly bear! Dromaeosaurid fossils have been found all over the world. They first appeared during the Cretaceous, though isolated teeth have been found in the mid-Jurassic. Allow me to present my humble collection of Dromaeosaurid teeth. First up, from Cloverly Formation, one of my pride and joy from @hxmendoza A dromaeosaurid from Aguja Formation. I am seeing more Aguja fossils showing up, but dromaeosaurid teeth are still rare. Now, for the dromaeosaurids from the famous Hell Creek Formation. Some of them probably lived alongside T. rex. A big shout-out for @Troodon for getting me started on dromaeosaurids with this very first Acheroraptor!
- 44 replies
-
- 15
-
-
-
- raptor
- velociraptor
- (and 12 more)
-
From the album: Hell Creek / Lance Formations
Even in the final years of the non-avian dinosaurs, the paravians remained diverse, with many species represented in the famed Hell Creek formation. -
David Evans who described Acheroraptor shared this photo and information on a few notable Dromaeosaurid's. Thought it would be of interest to the Dino guys and others. I also show a hand next to an adult Velociraptor skull which gives a real life size comparison, since a lot of depictions and replicas sold are well oversized. Acherorapter is from the Maastrichtian of Hell Creek/Lance Formation Saurornitholestes shown from Campanian of Canada/Montana Velociraptor from Campanian of Asia David: How big was the Hell Creek dromaeosaurid Acheroraptor temertyorum (top)? It’s about 25% bigger than Saurornitholestes (middle) and 66% bigger than Velociraptor (bottom). For reference it’s about 15% smaller than Deinonychus
- 19 replies
-
- 12
-
-
- velociraptor
- acheroraptor
- (and 1 more)
-
Hello dear all, after a long and stressful time I finally was able to acquire some new teeth and to try to figure out (to my best ;-)) what they are or might be… After reading these really helpful guides on the Hell Creek teeth I tend to label this tooth as Acheroraptor temertyorum The serration count is between 17 and 21 (actually i counted 17, 19 and 21, depending on the location +-1 inaccuracy)on a length of 5mm The length (CBL) is approx. 1.1 cm According to the seller it is from the Hell Creek Fm, Montana. Would you agree on Acheroraptor?
-
Authentic Acheroraptor tooth?
JessaB posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello, I found this listed as a 0.31” Acheroraptor tooth from the Hell Creek Formation in Montana. I messaged the seller asking about the locality/specific area it was found in and am waiting to hear back. Does it look like a genuine raptor tooth?
-
Hi TFF, I am a Dromaeosauridae enthusiast and have been collecting online for a little while now. I want to thank the members here for getting me educated on so many aspects of fossil teeth identification. I want to share my small collection in the hopes this is helpful for some of you in the future. Your critical input is highly appreciated, as always! #1 First up, one of my treasures, a robust Deinonychus antirrhopus tooth from the Cloverly Fm. A big thanks to @StevenJD for letting go of this one – much appreciated! Note the asymmetry in the placement of the carinae, best noticeable from the top view. #2 Representing the Judith River Fm., a cornerstone of my collection, a 1st left premaxillary tooth of Dromaeosaurus albertensis. I just love the way the mesial carina ‘folds’ onto the lingual surface. #3 Another premaxillary tooth from the Judith River Fm., a Zapsalis abradens with prominent ridges. The mesial carina has a nice twist, the cross section looks rather symmetrical, so likely not a 1st or 2nd premax. Distal denticles are hooked towards the tooth tip, but no mesial denticles are present and the tooth is not recurved. So, for now it is labeled as cf. Zapsalis abradens after Currie and Evans 2019, but could eventually be re-labeled as Saurornitholestes langstoni.
- 42 replies
-
- 15
-
-
- dromaeosaurid
- dromaeosaurus
- (and 6 more)
-
From the album: Dinosaurs
-
From the album: Dinosaurs
-
From the album: Dinosaurs
-
From the album: Dinosaurs
-
From the album: Hell Creek / Lance Formations
Dromaeosauridae (Cf. Acheroraptor temertyorum) Hell Creek Fm., Carter Co., MT, USA Acheroraptor's dentition is known incompletely, so it's possible this tooth is from Acheroraptor. Until more material is described, this tooth will remain indeterminate. There may be slight facets, but I'm not confident that's what I'm seeing.-
- 1
-
-
- dromaeosaur
- dromaeosauridae
- (and 7 more)
-
From the album: Hell Creek / Lance Formations
Acheroraptor temertyorum Hell Creek Fm., Garfield Co., MT, USA A Velociraptorine tooth with the diagnostic longitudinal ridges Acheroraptor is known for. This tooth has some wear on the tip and root etching at the base. Art by Emily Willoughby-
- 1
-
-
- dromaeosaur
- dromaeosauridae
- (and 9 more)
-
Identification A. temertyorum is characterized by the typical Dromaeosaurid traits (compressed, recurved, differing mc/dc serration densities), and longitudinal ridges/facets on the crown face. Notes This tooth was found this past Summer ('21), and in the same county as the holotype specimen.
-
- 2
-
-
- dromaeosaur
- dromaeosaurid
- (and 7 more)
-
From the album: Dinosaurs
Acheroraptor temertyorum Hell Creek Fm., Garfield Co., MT, USA Note the diagnostic ridges. -
Hi y'all, I picked up this gorgeous Dromaeosaurid tooth. It was listed as Acheroraptor and I bought it thinking it was one. However, upon receiving it and taking some measurements, I believe it may be a candidate for Dakotaraptor steini, as it virtually matches one in @Troodon's collection in every metric. It has a semi-oval base, with no ridges or facets commonly seen on Acheroraptor. The mesial carina is straight, and terminates almost 1/3 the CH from the base. Dromaeosauridae Hell Creek Fm., Carter Co., MT, USA CH: ~ 10.5 mm CBL: ~ 6 mm CBW: 3 mm Mesial denticle density: 8 / mm Distal denticle density: 4.5 / mm Distal serrations: Mesial serrations: Base: This is the other tooth I'm referring to:
-
It is easy to find Acheroraptor teeth in fossil e-shop?
-
Some Dromaeosaur Sickle Claws I Have Owned In The Past And Currently.
hxmendoza posted a topic in Member Collections
My Hell Creek Microraptorine sickle claw that I traded for a larger Hell Creek Dromaeosaur sickle claw. Probably Acheroraptor. The Microraptorine sickle claw after full restoration. It is related to Hesperonychus. I will miss it:
- 45 replies
-
- 1
-
-
- Dromaeosaur
- sickle claw
- (and 4 more)
-
I bought a killing claw from one of my favorite sellers with the hope that some work could be done to it to bring it back to life, per say. Hxmendoza did that and more. His work is phenomenal! Thanks, Henry! The light tip was sun-bleached because it was a surface find. The proximal half of the claw was found in the ground below it. Henry used a process to rejuvenate it, and no paint was used. Overall, the claw is well over 90% original. Heres some comparison photos:
- 14 replies
-
- 13
-
-
- dromaeosaur
- acheroraptor
- (and 1 more)
-
Hi All, Below are 4 teeth w the small (A) tooth being a Acheroraptor w the characteristic changes in size between anterior and posterior carinae serrations and ridges in the crown. I then obtained 3 more teeth (B-D) that are larger (around 13 mms). These teeth do seem to have the serrations size difference in the carinae but only tooth (D) has the ridges and is more flattened while teeth (B) and (C) have no ridges and more thickened. Does the serrations size changes between carinae trump no ridges? And does the thickened size of the two teeth suggests that they are small nano teeth or just different position tooth. Based on the link below by Frank (@Troodon), I would believe they are all acherorpator. Would like to hear you all's thoughts. Thank you.
-
Hey everyone, I came across these teeth online; They're being sold as an Acheroraptor teeth, but seemed odd to me and reminded me of some recurved Pectinodon teeth I had seen elsewhere (given their small size, too). [Tooth 1] The tooth was found in Hell Creek deposits in Carter County, Montana. I edited the seller's images together to make some features more visible. Its total height is 5mm; the serration density I measured is around 6/mm; Scale bar is 4mm. [Tooth 2] The tooth was found in Hell Creek deposits in Powder River County, Montana. Its total height [?] is around 4mm; Since there was no exact scale reference I couldn't edit in a scale bar. Thanks for any help with this!
- 11 replies
-
- 1
-
-
- pectinodon
- hell creek formation
- (and 5 more)
-
Hey everyone! In this post im going to be sharing two teeth from my collection. The first one was sold to me as acheroraptor. Its from the Hell Creek formation in MT and its CH is 7 mm. @Troodon
-
I have been working hard lately on all of our programs and we are very close to having the dinosaur presentation I want us to have. We have a name for this program, Dinos Rock. Yes it is not super creative but for 2nd graders, this is a geology themed program. For 3rd graders, it is adaptation based but the name works. We have added some pieces that gives us more than a few teeth. Nothing museum quality or anything but a few bones help the visual factor. I have been studying the biology, geology and ecology of dinosaurs so the science will be good. my son is working on the art but we wont have any done soon, he has school projects a head of this. We are close to being ready a full 6 months before I thought we would be. Hell Creek was going to be a focus for us because the fossils are available and this is the fauna that most kids will recognize. If you are willing to look hard, you can also find some real bargains from this formation. We turned a lot of early attention collecting attention to Hell Creek dinosaurs and I am actually really happy with where we are at with the fossil material we have. There is a lot of room to add and maybe upgrade in the future but this is a good start. This is the famous T-Rex and Triceratops fauna and we started our collection with those critters. Very early on, we were able to get a few Hell CreekTriceratops teeth. I am very happy that through a purchase from TFF member, we added two frill pieces. They are Lance formation but we are not covering the Lance formation yet so they will be used here. I also added a frill piece from Hell Creek. The kids will get to touch the largest frill piece which is a great bonus. An iconic dinosaur and I think well represented. Also early on, we stumbled into a great bit of a luck. A TFF member saw a post of ours and passed it on to another TFF member who sold us a beautiful Tyrannosaurus Rex partial tooth and gave us a really nice Nano too. It was very affordable and a generous gift was added that gave us nice pieces from the most famous dinosaur ever. The rock star really. I was not sure we would be able to get a decent example at all but to do it right off the bat was HUGE. This would not have happened if not for the members that decided to help us out. We are extremely grateful The first dinosaur fossil we got were two Hell Creek Edmontosaurus teeth that were a gift. We acquired a nice jaw fragment in a trade. I am a bargain shopper with a limited budget so I LOVE our Edmontosaurus as it has not cost much at all. I named this display Eddie I like it so much lol Hadrosaurs are important dinosaurs to talk about and I think a fair amount of kids may not know about them. I would like to add another bone later too. They seem attainable for us. Acheroraptor was behind only T-rex on the my list and we got a really beautiful tooth and it was another bargain pick up. I will talk a lot about this species and I will get deep into the biology/ecology of this awesome dino because I love Dromaeosaurids. Raptors are also an iconic dinosaur that kids love and this is a relatively new species which is another fun thing to discuss with the kids. We will also be introducing the kids to a theropod they have never heard of, Richardoestesia gilmorei. I have told me son to envision a toothed Cormorant type dinosaur as I lean toward them being a fish eater. It is pretty cool to get a Hell Creek dino that they will not know anything about. We have yet to add a Thescelosaurus fossil but we will before we start presenting. I want to add another piece of the fauna and it seems this is the most inexpensive option we will have. It will also give the kids another dinosaur they probably do not know and it will round out the basic Hell Creek fauna. There is no shortage of dinosaurs that we can add either. An Anky or Nodosaur scute is way up on the program list of fossils for me and hopefully we can find one from this formation. Dakotaraptor is #1 on my personal list and I will get one eventually. A Troodontid is also very high on the list as well. I know eventually i will also pick up an Ornithominid too. All three of these are more expensive so we will have to save and wait but each one would also make awesome educational dinosaurs. I also really want to add an Avian fossil. I have not researched this but my guess is they are very rare. Leptoceratops is another species I would love to add at some point too. They are really cute and kids will dig them. Anyway, here are some of the fossils. I think we have a good start going to our Hell Creek collection and I am looking forward to taking these to work with me very soon. Pic 1- Triceratops teeth and Eddie Pic 2- T-Rex, Nano, and Hell's Thief. I am so happy to have these fossils. Pic 3- One of the frill pieces. This one will end up in a larger Trike display with more teeth and another frill. Plus we will have nice frill for kids to check out too.
- 11 replies
-
- 2
-
-
- dinosaur fossils
- dinosaur education
- (and 6 more)
-
This is a .35" theropod tooth from the Hell Creek formation, Carter County Montana. It is a really pretty little tooth for sure and it would look great in our Acheroraptor display. I believe I see the ridges that are diagnostic to that species, especially in the first picture. I wanted to run this by the forum to be sure I am seeing what I need to see though.
-
I thought I’d post some of my favorite claws from my collection. I’m curious what people think about my ID on one of them and I have no idea what the last one is. ID help with that one would be great! (All measurements are straight line) Spinosaurus hand claw 4 1/2” Kem Kem Beds, Morocco Repairs, but I see no restoration Acheroraptor Temerytorum foot walking claw 1 7/8” Hell Creek Carter County, Montana No repair or restoration (at first). However, the tip broke off during molding and it was lost. 1/16” restoration done to the tip now Two Acheroraptor killing claws. The larger one is 3 1/8” and the smaller is 1 9/16” Hell Creek Powder River County, Montana Large claw has restoration to the top 1/4” of the articulation end and 3/4” to the tip Smaller claw has restoration on 5/8” of the tip Same claw as above, with size perspective Other side... Acheroraptor Temertyorum digit I hallux claw 7/8” Hell Creek Slope County, North Dakota No repair or restoration Acheroraptor Temertyorum hand claw 1 1/4” Hell Creek Powder River County, Montana Restoration to 1/2” of the tip I originally thought this this was a Pachycephalosaurus claw, but Troodon’s posting on TFF makes me now believe it’s Thescelosaurus Hell Creek Powder River County, Montana No repair or restoration Side view.. Troodontid walking foot claw 1 1/16” Hell Creek Wibeaux County, Montana Looks like restoration to 1/4” of the tip Possible Microraptorine hand claw 5/8” Hell Creek Carter County, Montana Small amount of restoration to the top of the articulating end and 1/8” of the tip Same claw... Microraptorine killing claw. Related to Hesperonychus sp. 7/8” Hell Creek South Dakota Restoration to 3/16” of the tip Same claw for size comparison... Curious what people think of this one.. I believe it to be a Troodontid killing claw 3/4” Two Medicine Formation Unfortunately, no locality info on it Looks like the tip was glued back on, but no restoration Other side... Now I have no clue what this could be and I’d love some help. I bought it as a new collector awhile ago with very little knowledge. It was sold as a baby Anzu foot claw and the seller said Black Hills Museum ID’d it. I think it’s actually mammalian. Any thoughts? Size comparison Articulating end (sorry for the poor pics)
- 19 replies
-
- 13
-
-
- acheroraptor
- spinosaurus
- (and 1 more)
