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Showing results for tags 'acheroraptor'.
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From the album: Hell Creek Formation Microsite
Acheroraptor was a small theropod (dromaeosaurid) "raptor" that lived in the same paleo-ecosystem as T. rex. Its blade-like serrated teeth possess diagnostic apicobasal ridges.-
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Hi everyone, I haven't posted in a long time as I've been busy with a toddler but have recently made some fun additions to the humble collection. I've been searching for years for a killing claw from a dromaeosaur from Hell Creek and recently stumbled on what could be a killing claw but from what's being identified as a dromaeosaur from Judith River. It's listed as 0.6" which is fairly small. Can anyone provide any more insight into what it could be? Whether they see any extensive restoration? Could it be a troodontid given it's small size? The seller is also offering what I can only guess is a walking foot claw of a dromaeosaur from Hell Creek. 0.8" It's the paler claw. These would be some of the last fossils on my life long dream list to have. I appreciate any help anyone can provide and I'll try to also post more as things settle down cheers Marcus
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From the album: Hell Creek / Lance Formations
A small Acheroraptor tooth with diagnostic longitudinal ridges. Found in a channel deposit.-
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Howdy all, I've read a lot of articles saying that Acheroraptor belongs in Velociraptorinae, but also some that says it instead belongs in Saurornitholestinae. Which is correct?
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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.-
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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?
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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?
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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.- 1 comment
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From the album: Dinosaurs
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From the album: Dinosaurs
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From the album: Dinosaurs
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From the album: Dinosaurs
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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.
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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-
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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.-
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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:
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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.
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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:
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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.
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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!
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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
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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.
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A totally AWESOME addition to our dinosaur collection
fossilsonwheels posted a topic in Member Collections
I recently added a Dromaeosaurid vertebra to our collection. I honestly did not bother with specs once I got it confirmed as Dromaeosaurid. I never asked size or what formation. I assumed it was from Judith River because it was sold as Dromaeosaurus. i knew it was going to be Dromaeosaurid indet so I was not worried about the specific ID. It is a raptor fossil so I wanted it. The vertebra arrived today and I got two very pleasant surprises. It is bigger than I thought. It is also not from Judith River or the species known from that formation. We got a Dromaeosaurid vertebra from the Hell Creek formation Many of our fossils end up being listed as a indet species. This one went into our official inventory as Dromaeosaurid indet. An indet species gives us some degree of latitude with our programs. I assign species to many of them such as Medusaceratops or Zuul from Judith River so that we can teach the kids dinosaurs they do not know about. When I first saw Hell Creek on the paperwork, I thought "Great, we have a vert to add to our Acheroraptor display which contains a single tooth." I began to think that I should assume it is from Acheroraptor because I had run across a published paper about a reconstruction of Dakotaraptor's tail. I thought it might be a good idea to reread that paper and see what information it provided. Our caudal vert is 5 cm long. Much to my surprise, that is right in the middle of the size range for a Dakotaraptor caudal vertebra according to the reconstruction (if I read the paper right). Now I am not saying this is a Dakotaraptor vertebra. I am nowhere near qualified to make that call. I also doubt I am lucky enough to find a fossil of that species by total accident lol I am also not qualified to say for sure that this is not a Dakotaraptor fossil. As an educator, this gives me a really awesome option. I am now considering that this may be an opportunity to add Dakotaraptor to our program with a fossil that MAY be from the giant raptor. Kids would dig that and it gives us the chance to talk about how the science, and art, of describing dinosaurs works. I think I am going to to print up the paper and give kids the information from it. They can see the fossil and come to their own conclusions. We do this with the lineage of Great White sharks. We show the kids teeth from a GW, a Meg, and a Hastalis. They can make their own conclusions though 80% of the kids the other day believed hastalis is the ancestor of the GW. It was a fun thing to do and it would work very well this fossil too. Dakotaraptor has been high on my list to add but I thought it would be down the road. I do not think there is any problem with introducing this fossil as possibly being from Dakotaraptor. Either way, we added an really cool fossil that I am super stoked about. Here is our Hell Creek Dromaeosaurid indet vert. Is it Acheroraptor or Dakotaraptor ? I am going to let the kids decide which awesome raptor this fossil is from.
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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.
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