Troodon Posted April 16, 2018 Share Posted April 16, 2018 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 12 Link to comment Share on other sites More sharing options...
TyBoy Posted April 16, 2018 Share Posted April 16, 2018 That's very interesting. Did not appreciate the size of velociraptor, thanks for posting Link to comment Share on other sites More sharing options...
Fossildude19 Posted April 16, 2018 Share Posted April 16, 2018 Interesting - here is a comparative size chart I found on Google Images: Original artwork by FredtheDinosaurman 5 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Bobby Rico Posted April 16, 2018 Share Posted April 16, 2018 9 minutes ago, Fossildude19 said: Interesting - here is a comparative size chart I found on Google Images: Original artwork by FredtheDinosaurman Why is the man in the picture from Victorian England , was people not general smaller in them days? very interesting thank you @Troodon 6 Link to comment Share on other sites More sharing options...
ynot Posted April 16, 2018 Share Posted April 16, 2018 1 hour ago, Bobby Rico said: Why is the man in the picture from Victorian England , It's Dc. Dolittle. He was the only one that could get them critters to line up for the picture! 6 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Wilhelm Posted April 16, 2018 Share Posted April 16, 2018 2 hours ago, Fossildude19 said: Interesting - here is a comparative size chart I found on Google Images: Original artwork by FredtheDinosaurman Huh, thought Deinonychus was bigger than that. Guess the people who keep saying Deinonychus is the true JP Velociraptor are thinking of Austroraptor or Utahraptor. Link to comment Share on other sites More sharing options...
Troodon Posted April 16, 2018 Author Share Posted April 16, 2018 Dakotaraptor from the Hell Creek Formation a biggie 4 Link to comment Share on other sites More sharing options...
Wilhelm Posted April 16, 2018 Share Posted April 16, 2018 2 minutes ago, Troodon said: Dakotaraptor from the Hell Creek Formation a biggie Haven't seen a lot of Dakotaraptor teeth around. Even though the species was described fairly recently you would think isolated teeth would have been found in abundance. Link to comment Share on other sites More sharing options...
Fossildude19 Posted April 16, 2018 Share Posted April 16, 2018 15 minutes ago, Wilhelm said: Huh, thought Deinonychus was bigger than that. Guess the people who keep saying Deinonychus is the true JP Velociraptor are thinking of Austroraptor or Utahraptor. Yes, I remember reading somewhere that the "Velociraptor" in JP was embellished in size, since Deinonychus was the biggest dromaeosaurid described, up until then (1993). Spielberg wanted the Velociraptors to be bigger, and therefore, more scary. Utahraptor was discovered in 1991, but I don't think it was formally described at the time. Dakotaraptor was found in 2005. 5 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Troodon Posted April 16, 2018 Author Share Posted April 16, 2018 (edited) On 4/16/2018 at 11:43 AM, Wilhelm said: Haven't seen a lot of Dakotaraptor teeth around. Even though the species was described fairly recently you would think isolated teeth would have been found in abundance. Have not seen very many Dakotaraptor teeth so they appear to be scarce. Having said that the teeth are difficult to identify and look very similiar to juvie Nanotyrannus teeth. Some that I've seen on the market were misidentified. I have yet to find one. Most sellers are clueless in how to properly Identify them, so caution. Edited April 18, 2018 by Troodon 1 Link to comment Share on other sites More sharing options...
Troodon Posted April 17, 2018 Author Share Posted April 17, 2018 Learn about Utahraptor 3 Link to comment Share on other sites More sharing options...
Troodon Posted April 18, 2018 Author Share Posted April 18, 2018 The original (type specimen) skull of Velociraptor Set of Velociraptor skulls z Images courtesy of Thomas Holt 5 Link to comment Share on other sites More sharing options...
Troodon Posted April 18, 2018 Author Share Posted April 18, 2018 Today is Velociraptor Awareness Day! Dave Evans posted this Velociraptor mongoliensis is a dromaeosaurid dinosaur. Its known from the late Campanian of Mongolia & lived ~73 million years ago. There is a second referred species, V. osmolskae, but it may be closer to Tsaagan & may need a new genus name. Check out those claws 6 Link to comment Share on other sites More sharing options...
Moozillion Posted April 23, 2018 Share Posted April 23, 2018 On 4/16/2018 at 12:54 PM, ynot said: It's Dc. Dolittle. He was the only one that could get them critters to line up for the picture! 1 Link to comment Share on other sites More sharing options...
Seguidora-de-Isis Posted May 21, 2018 Share Posted May 21, 2018 By the paleoartistic reconstructions that I find on the internet, unfortunately I still can not tell apart one specie of the other... All I know, and I can say with certainty, is that these animals are delicious! Every Sunday me and my family eat one of them roast... To tell you the truth, I think they are nicer and more appetizing like this... Roastaraptor I eatensis! 2 Is It real, or it's not real, that's the question! Link to comment Share on other sites More sharing options...
Troodon Posted May 21, 2018 Author Share Posted May 21, 2018 Not all chicken size but here is a Paleo illustrators rendition of different Dromaeosaurids Jed Taylor of Redbubble Top Row Left to Right Linheraptor, Velociraptor, Tsaagan, Saurornitholestes, Microraptor Bottom Row Changyuraptor, Zhenyuanlong, Acheroraptor, Dromaeosaurus, Atrociraptor 5 Link to comment Share on other sites More sharing options...
PaleoZorryn Posted April 22, 2023 Share Posted April 22, 2023 Question. In estimated size, would that make Acheroraptor's skull (if complete) a total 15 some inches since it is around 66% bigger than a Velociraptor skull, which is approximately 9.1 inches. Correct me if I am wrong here. I am just trying to make an accurate to scale model of an Acheroraptor head. It is rather one of my favorite raptors. Link to comment Share on other sites More sharing options...
Troodon Posted April 22, 2023 Author Share Posted April 22, 2023 From Evans & Currie's 2013 paper that described Acheroraptor they have a pretty good illustration of that skull to go by and take better measurements https://link.springer.com/article/10.1007/s00114-013-1107-5 1 Link to comment Share on other sites More sharing options...
PaleoZorryn Posted April 22, 2023 Share Posted April 22, 2023 Ok, thank you. Link to comment Share on other sites More sharing options...
Phos_01 Posted April 22, 2023 Share Posted April 22, 2023 (edited) On 5/21/2018 at 3:58 PM, Troodon said: Not all chicken size but here is a Paleo illustrators rendition of different Dromaeosaurids Jed Taylor of Redbubble Top Row Left to Right Linheraptor, Velociraptor, Tsaagan, Saurornitholestes, Microraptor Bottom Row Changyuraptor, Zhenyuanlong, Acheroraptor, Dromaeosaurus, Atrociraptor No evidence of these lips though , really not convinced they had them. Still everyone now thinks dinosaurs had them, even the mighty Rex. Given the way the would hunt , eat, defend having these beaks it would lead to massive infections etc. in my opinion they had none. Edited April 22, 2023 by Phos_01 Link to comment Share on other sites More sharing options...
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