Dr. Polaris
Dr. Polaris
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Paleo-Profile: Ornitholestes
Please enjoy this video examining the relatively famous Late Jurassic small Theropod Ornitholestes, which may have been a basal relative of the highly successful Maniraptoriformes.
www.deviantart.com/drpolaris
www.patreon.com/c/DrPolaris
Sources used for this video:
Carpenter, Kenneth; Miles, Clifford; Ostrom, John H.; Cloward, Karen (2005). "Redescription of the Small Maniraptoran Theropods Ornitholestes and Coelurus". In Carpenter, Kenneth (ed.). The Carnivorous Dinosaurs. Life of the Past. Indiana University Press. pp. 49-71.
Chapelle, Kimberley E.; Norell, Mark; Ford, David P.; Hendrickx, Christophe; Radermacher, Viktor J.; Balanoff, Amy; Zanno, Lindsay E.; Choiniere, Jonah N. (2021). "A CT-based revised description and phylogenetic analysis of the skull of the basal maniraptoran Ornitholestes hermanni Osborn 1903".
Foster, John (2007). "Gargantuan to Minuscule: The Morrison Menagerie, Part II". Jurassic West: The Dinosaurs of the Morrison Formation and Their World. Indiana University Press. pp. 162-242.
Long, John A.; Schouten, Peter (2008). "Ornitholestes and kin". Feathered Dinosaurs: The Origin of Birds. Oxford University Press. pp. 72-77.
Osborn, Henry Fairfield (1903). "Ornitholestes hermanni, a new compsognathoid dinosaur from the Upper Jurassic". Bulletin of the American Museum of Natural History. 19 (12): 459-464.
Ostrom, John H. (1980). "Coelurus and Ornitholestes: Are they the same?". In Jacobs, Louis L. (ed.). Aspects of Vertebrate History: Essays in Honor of Edwin Harris Colbert. Museum of Northern Arizona Press. pp. 245-256.
Paul, Gregory S. (1988). "Ornitholestians and Allosaurs". Predatory Dinosaurs of the World. Simon & Schuster. pp. 302-318.
Senter, Phil (2006). "Forelimb function in Ornitholestes hermanni Osborn (Dinosauria, Theropoda)". Palaeontology. 49 (5): 1029-1034.
Turner, C.E. and Peterson, F., (1999). "Biostratigraphy of dinosaurs in the Upper Jurassic Morrison Formation of the Western Interior, U.S.A." Pp. 77-114 in Gillette, D.D. (ed.), Vertebrate Paleontology in Utah. Utah Geological Survey Miscellaneous Publication 99-1.
มุมมอง: 6 122

วีดีโอ

Australia's Lost Monotremes
มุมมอง 12K14 วันที่ผ่านมา
Please enjoy this video examining the diverse fossil monotremes of Mid-Cretaceous Australia. www.deviantart.com/drpolaris www.patreon.com/c/DrPolaris Sources used for this video: Álvarez-Carretero, Sandra; Tamuri, Asif U.; Battini, Matteo; Nascimento, Fabrícia F.; Carlisle, Emily; Asher, Robert J.; Yang, Ziheng; Donoghue, Philip C.J.; dos Reis, Mario (2022). "A species-level timeline of mammal ...
Early Evolution of Bats
มุมมอง 11Kหลายเดือนก่อน
Please enjoy this video examining the early evolutionary history of bats, which exploded onto the scene during the Early Eocene and very quickly achieved a near global range. www.deviantart.com/drpolaris www.patreon.com/c/DrPolaris Sources used for this video: Amador, Lucila I.; Simmons, Nancy B.; Giannini, Norberto P. (March 2019). "Aerodynamic reconstruction of the primitive fossil bat Onycho...
Real Sea Serpents
มุมมอง 26Kหลายเดือนก่อน
While sea serpents are often the subject of myth and legend, real aquatic snakes have a long fossil history, with some forms even growing to relatively large sizes. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education. Sources used for this video: Bardet, Nathali...
Evolution of Eagles: Part 2
มุมมอง 10Kหลายเดือนก่อน
Please enjoy the second part of my examination of the predatory Accipitrids. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education. Sources used for this video: Brighton, Caroline H; Zusi, Lillias; McGowan, Kathryn A; Kinniry, Morgan; Kloepper, Laura N; Taylor, Gr...
Evolution of Eagles
มุมมอง 18K2 หลายเดือนก่อน
Please enjoy this video examining the evolution of the Accipitriformes, a highly successful lineage of mostly carnivorous birds that contains the buzzards, kites, eagles, Afro-Eurasian vultures among many others. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and educati...
The Rise of the Ornithopods
มุมมอง 11K2 หลายเดือนก่อน
Having first evolved during the Middle Jurassic as small, fast running herbivores, the Ornithopods began to develop larger body sizes by the end of the period. Equipped with highly efficient jaws and tightly packed teeth for processing plant matter, the group diversified rapidly going into the Cretaceous, possibly taking advantage of the Tithonian extinction event as well as the rise of floweri...
Early Evolution of Theropods
มุมมอง 19K3 หลายเดือนก่อน
Please enjoy this video examining the evolution of Triassic carnivorous dinosaurs. All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education. References used for this video: Cau, Andrea (2018). "The assembly of the avian body plan : a 160-million-year long process" (PDF). Bollettino della Società Paleontologica Italiana. ...
Early Evolution of Plesiosaurs
มุมมอง 14K3 หลายเดือนก่อน
Please enjoy this video examining the rise of the early Plesiosaurs and their relatives. All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education. References used for this video: Benson, R. B. J.; Druckenmiller, P. S. (2013). "Faunal turnover of marine tetrapods during the Jurassic-Cretaceous transition". Biological Revi...
Ceratosaurus: The Jurassic Underdog
มุมมอง 15K4 หลายเดือนก่อน
Please enjoy this video examining the striking but often overlooked Jurassic Theropod Ceratosaurus. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education.
Andrewsarchus: A Misunderstood Beast
มุมมอง 35K4 หลายเดือนก่อน
Please enjoy this video examining the mysterious Eocene mammal Andrewsarchus, known from a single skull and previous restored as a massive wolf-like apex predator. Today, it is thought to have been an omnivorous member of Whippomorpha, being a close relative of Entelodonts, hippos and whales.
The Yowie: Australia's Bigfoot?
มุมมอง 16K5 หลายเดือนก่อน
Please enjoy this video focusing on the history of Australia's answer to Sasquatch: the Yowie. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education. #cryptozoology #yowie #bigfoot
Tentacled Geniuses: Evolution of Octopuses, Squid and Relatives
มุมมอง 11K5 หลายเดือนก่อน
Please enjoy this video covering the evolution of the modern soft bodied Cephalopods, a journey spanning from the Cambrian period over 500 million years ago to today. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education.
Bizarre Early Ichthyosaurs
มุมมอง 13K6 หลายเดือนก่อน
Please enjoy this video examining the early evolution of Ichthyosaurs and their relatives. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education
The Largest Snakes to Ever Live?
มุมมอง 10K6 หลายเดือนก่อน
The Madtsoiids were an ancient group of snakes that first emerged during the Mesozoic and persisted in Australia until the Late Pleistocene. Superficially resembling modern constrictor snakes such as pythons and boas, these animals often reached large sizes, with the genus Vasuki indicus possibly being the longest snake to ever live. www.deviantart.com/drpolaris www.patreon.com/DrPolaris All co...
Tiny Titans: The Early Evolution of Sauropods
มุมมอง 13K7 หลายเดือนก่อน
Tiny Titans: The Early Evolution of Sauropods
Litopterns: South American Horse Camels
มุมมอง 25K7 หลายเดือนก่อน
Litopterns: South American Horse Camels
Hyraxes: Unexpected Elephant Relatives
มุมมอง 18K7 หลายเดือนก่อน
Hyraxes: Unexpected Elephant Relatives
The Cretaceous Ancestors of Modern Birds: Part 2
มุมมอง 13K8 หลายเดือนก่อน
The Cretaceous Ancestors of Modern Birds: Part 2
Early Evolution of Mosasaurs
มุมมอง 15K8 หลายเดือนก่อน
Early Evolution of Mosasaurs
Gigantopithecus: The Real King Kong
มุมมอง 42K9 หลายเดือนก่อน
Gigantopithecus: The Real King Kong
The Cretaceous Ancestors of Modern Birds
มุมมอง 23K9 หลายเดือนก่อน
The Cretaceous Ancestors of Modern Birds
Therocephalians: Beast Headed Proto-Mammals
มุมมอง 16K10 หลายเดือนก่อน
Therocephalians: Beast Headed Proto-Mammals
Pelagornithids: The Largest Flying Birds
มุมมอง 24K10 หลายเดือนก่อน
Pelagornithids: The Largest Flying Birds
Early Proboscideans: The First Tuskers
มุมมอง 27K11 หลายเดือนก่อน
Early Proboscideans: The First Tuskers
Notoungulates: South America's Unique Herbivores
มุมมอง 28K11 หลายเดือนก่อน
Notoungulates: South America's Unique Herbivores
Paleognaths and the Rise of the Ostriches
มุมมอง 25Kปีที่แล้ว
Paleognaths and the Rise of the Ostriches
The Giant Extinct Lemurs of Madagascar
มุมมอง 37Kปีที่แล้ว
The Giant Extinct Lemurs of Madagascar
Panthera: The Evolution of the Big Cats
มุมมอง 58Kปีที่แล้ว
Panthera: The Evolution of the Big Cats
Argentavis and the Teratorns: Among the Largest Birds to Ever Fly
มุมมอง 20Kปีที่แล้ว
Argentavis and the Teratorns: Among the Largest Birds to Ever Fly

ความคิดเห็น

  • @DinosaurLeo
    @DinosaurLeo 11 ชั่วโมงที่ผ่านมา

    I’m digging deep into this my pet has gone missing I saw a dead skull of it just where I was walking last month it has scratch marks on it people said it was a bigger dog but that one day I saw it I don’t have picture proof but I saw a black leopard

  • @hcollins9941
    @hcollins9941 11 ชั่วโมงที่ผ่านมา

    I’d like to hear about some dinosaurs that don’t get enough recognition; Despite being part of a rather popular family. We already have the popularity of Therizinosaurus; and the partial Stardom in documentaries for Nothronychus. But a couple that have stuck with me since my childhood that I remember are Erlikosaurus & Segnosaurus. I feel that the unsung members of this bizarre family need better recognition!

  • @justapickedminfan
    @justapickedminfan วันที่ผ่านมา

    I hope you cover some Triassic dinos! My vote goes to plateosaurus.

  • @DVDFRMN
    @DVDFRMN วันที่ผ่านมา

    Cats are a hybrid creature created for hunting vermin by mixing monkey, snake and rodent. Look at the Cat's skull shape, like a snake, and the third eyelid, the hiss, and when they lay down and stretch out long, they are really like a snake, the tail is like a snake..... plus they are monkey, tree dwelling and part rodent....

  • @Dylan-Hooton
    @Dylan-Hooton 2 วันที่ผ่านมา

    When will you make a cryptids video again?

  • @fgialcgorge7392
    @fgialcgorge7392 3 วันที่ผ่านมา

    One on Dilophosaurus would be great

  • @Beryllahawk
    @Beryllahawk 3 วันที่ผ่านมา

    Oh I like this! A bit more detailed and covering some of the ideas new AND old! That tired sigh at Morrison's name made me giggle, also :D I would like to second the suggestion in comment for Equus - though my specific thought would be Eohippus, I'd be happy to learn about most any of the ancient ungulates. Those toes - even or odd numbered - are SUCH an interesting adaptation, from reindeer to mustang ponies!

  • @1998topornik
    @1998topornik 3 วันที่ผ่านมา

    I suggest maybe macrauchenia or toxodon for next paleo profile.

  • @CharlesDupreeTargeted
    @CharlesDupreeTargeted 3 วันที่ผ่านมา

    Since discovering the prehistoric mammals and other species of that time I find them way more interesting and fascinating than the dinosaurs I don’t know if it’s because we grew up being taught about dinosaurs and seeing toys and films made of them and we saw them all the time and had no real acknowledgement of these creatures but I find these mammals so unbelievably interesting maybe it’s because they are the ancestors of our modern mammals! I’m so obsessed 😆 thank you Dr.P amazing videos 👍

  • @myramadd6651
    @myramadd6651 3 วันที่ผ่านมา

    The little red frog dude looks like he was drawn by @Trevor Brighton.

  • @naninaze
    @naninaze 3 วันที่ผ่านมา

    My suggestion would be a paleo profile of Archaeopteryx!

  • @johnmead8437
    @johnmead8437 3 วันที่ผ่านมา

    Cooks sighting has been attributed to possibly the ship's cat. Wild Maori dogs possibly could be mistaken, or since late 1800's, stoats (they readily swim like mini otters). The SE Asian otter? is another possible culprit. Persistent cryptic information suggesting pre-European colonisation by several groups of humans, Maori being the most recent, & some were not Polynesian. SE Asian could easily include their otter. In Last 1800s a well described sighting by a couple of children occurred in the upper Buller in Nelson district. It tallies well with the descriptions here & is recorded in the hunting book by N McConachie. Subsequent information revealed apparently an otter escaped captivity from the Nelson settlement & was recorded a few times between this sighting and its escape point. McConachie didn't mention this or appear aware of it. He was an excellent observer, but the account was his older sister's recollection, who he felt would recall better. If one otter was imported the likelihood of more elsewhere is quite feasible, & they would easily escape if not well secured. They can confidently be considered extinct, if they were ever a breeding population.

  • @qwellen7521
    @qwellen7521 3 วันที่ผ่านมา

    Those sauropodlet are up to something….

  • @praetorianrex5571
    @praetorianrex5571 3 วันที่ผ่านมา

    Suggestion: Helveticosaurus from the Triassic, please 🙏

  • @jessegartung294
    @jessegartung294 3 วันที่ผ่านมา

    Do a video on odobenocetops

  • @AweWerty
    @AweWerty 3 วันที่ผ่านมา

    next one please do Bistahieversor

  • @boobio1
    @boobio1 3 วันที่ผ่านมา

    All Hail the Great Henry Fairfield Osborn!!!

  • @patrick_j_lee
    @patrick_j_lee 4 วันที่ผ่านมา

    Ornitholestes being potentially an oviraptorid is NOT something I could have predicted!

  • @puffinmcpuffin9488
    @puffinmcpuffin9488 4 วันที่ผ่านมา

    Eryops never gets enough love. You should do a video on them! :)

  • @Calvin.of.Martin.Street
    @Calvin.of.Martin.Street 4 วันที่ผ่านมา

    As a kid growing up in the 1970s in a small town, most of the books I read about prehistoric life were already out of date, but I do remember Ornitholestes was a very popular dinosaur to the authors and artists.

  • @sumalikasbi4805
    @sumalikasbi4805 4 วันที่ผ่านมา

    Andrewsarchus and its Protamammal head

  • @Smw006
    @Smw006 4 วันที่ผ่านมา

    Paleofile idea: diplocaulus

  • @YutyranoBlazar
    @YutyranoBlazar 4 วันที่ผ่านมา

    I got one. Yutyrannus

  • @bensantos3882
    @bensantos3882 4 วันที่ผ่านมา

    Wuhan, China has a lot of famous paleontology finds from Dinosaur fossils with this type of genus too.

  • @melvinshine9841
    @melvinshine9841 4 วันที่ผ่านมา

    I've always had a soft spot for Ornitholestes. I was actually thinking earlier today that I'd suggest a video about ornithomimids the next time Dr. Polaris uploaded a video. Deinocheirus would make a good Paleo-Profile video, given it was just "giant mystery arms" for decades.

  • @jgrandson5651
    @jgrandson5651 4 วันที่ผ่านมา

    I would suggest the genus Equus. It (was) is an incredibly succesful, widespread and diverse taxon with many species that deserve more recognition

  • @Silentjuggler
    @Silentjuggler 4 วันที่ผ่านมา

    You going to do a video on the mummified saber tooth cat they found?

  • @dylangeltzeiler946
    @dylangeltzeiler946 4 วันที่ผ่านมา

    If I remember correctly… “Incase I didn’t have time to here this on here.” Ornitholestes is a member of a group of Dinosaurs called the Coelurosaurs. They even include the Tyrannosaurs as part of the Coelurosaurs. Ornitholestes might be one of the distant cousins to the Mighty T.REX.

  • @DAVIDPETERS12C
    @DAVIDPETERS12C 4 วันที่ผ่านมา

    Stop spreading the myth of the bat-wing theropod/bird. There is no styliform element. That's just a broken bone. Details here: pterosaurheresies.wordpress.com/2015/05/03/no-styliform-element-on-yi-qi-thats-just-a-displaced-radius/ and here: pterosaurheresies.wordpress.com/2021/07/04/when-a-simple-torsion-fracture-turned-an-early-cretaceous-bird-into-bizarre-bat-wing-dinosaur/ In analysis Ornitholestes nests with Scriurumimus as a large compsognathid basal to dromaeosaurs and birds. Cladogram here: reptileevolution.com/reptile-tree.htm

  • @maozilla9149
    @maozilla9149 4 วันที่ผ่านมา

    nice

  • @GarGhuul
    @GarGhuul 4 วันที่ผ่านมา

    I am not proud to say my only familiarity with this is from knowing about “The silurian hypothesis.” I think that’s this one, right?

  • @andythegoatman694
    @andythegoatman694 4 วันที่ผ่านมา

    Looking foward to the cynodonts love me some snyapsids from the triassic

  • @andythegoatman694
    @andythegoatman694 4 วันที่ผ่านมา

    Quilliam will always have a place in our hearts. Ornitholestes is a cool dinosaur im surprised i havent tried drawing it yet

  • @ericvondell5157
    @ericvondell5157 4 วันที่ผ่านมา

    In my day, Ornitholestes and Coelurus were often considered the same animal. In high school (1980-1983) I signed My artworks with My "EV" Logo topped with "Coelurus" , which was amongst My favorite dinosaurs at the time.(Coelophysis being My most favorite!) I also had the notion of Feathers and active postures for These creatures which got me a Lot of ridicule from teachers. Weirdly, the idea came from The very books That compared theropod dinosaurs to birds, and some of those books were seriously Out of date. There's a groovy recently described Dinosaromorph called Silesaurus opolensis that would make a Great Profile subject! It's been called the "Greyhound of Dinosaurs" by several authors. It fits in well with my early depictions of My Tairlanga making Tairlanga seem more possible than ever! Great Work on your Ornitholestes Profile Here!!!💖

  • @ridleyroid9060
    @ridleyroid9060 4 วันที่ผ่านมา

    Dog sized ✅ Fluffy ✅ If this dinosaur were alive, people would most likely try their darndest to domesticate or tame them.

  • @Predaknite
    @Predaknite 4 วันที่ผ่านมา

    I would like to ask you to make a video on my favorite, the Cryolophosaurus Ellioti

  • @joakos1122
    @joakos1122 4 วันที่ผ่านมา

    Amazing content as always

  • @kadenbowdige2896
    @kadenbowdige2896 4 วันที่ผ่านมา

    Can you please cover Yutyrannus in the next profile?

  • @laurawright719
    @laurawright719 4 วันที่ผ่านมา

    Acrocanthosaurus, my favorite dino. Why not?

  • @dagoodboy6424
    @dagoodboy6424 4 วันที่ผ่านมา

    Underatted dino

  • @Thyla0
    @Thyla0 4 วันที่ผ่านมา

    Paleo Profiles looks like it will be a good series, may I suggest a few Australian dinosaurs; Australovenator, Leaellynasaura, Minmi and/or Muttaburrasaurus

  • @marcosalerno4254
    @marcosalerno4254 4 วันที่ผ่านมา

    The next Paleo-Profile could be Dimetrodon? Awesome video on an intriguing dinosaur, Doc!

  • @b.a.erlebacher1139
    @b.a.erlebacher1139 4 วันที่ผ่านมา

    More info on the proto-mammalians that were such a leading group of animals of all sizes until they got clobbered at the end of the Permians would be cool. The development of these guys into mammals throughout the Mesozoic is now being found in groups that hadn't been discovered much. There were too small and got eaten or crushed and undiscovered much like other small animals. A lot must have been going on in the Mesozoic that just didn't leave much accessible fossils. Some of the fossils being found now in ancient east Asian volcanic rock that covered the animals quickly and not too destructively are just marvelous.

  • @K8theKind
    @K8theKind 4 วันที่ผ่านมา

    Can you do Aurornis or any of the other Troodontids? Or maybe Austroraptor? Or both?! 🤭 Please? ☺️

  • @ellaofoakhill4661
    @ellaofoakhill4661 4 วันที่ผ่านมา

    Would you consider Fasolasuchus and/or Lisowicia for future paleo-profiles?

  • @Grand_History
    @Grand_History 4 วันที่ผ่านมา

    You sure you should call it Paleo Profiles? That’s the same name Trey the Explainer used for his videos

    • @isaacthedestroyerofstuped7676
      @isaacthedestroyerofstuped7676 4 วันที่ผ่านมา

      Can't imagine Trey would have a problem with it considering the switchlin focus from general topics to more anthropological ones

    • @Zilch.0
      @Zilch.0 วันที่ผ่านมา

      I think that was very much intentional. Trey hasn't done a paleo profile in years. I think this is Dr P's way of giving him a gentle ribbing.

  • @ewaszot1243
    @ewaszot1243 4 วันที่ผ่านมา

    I think you should do Lisowicja for Paleo Profile

  • @malusignatius
    @malusignatius 4 วันที่ผ่านมา

    I'm going to suggest Muttaburrasaurus, mainly because Australian Dinos don't get enough love.

    • @rexyjp1237
      @rexyjp1237 4 วันที่ผ่านมา

      Australovenator is goated.

  • @thedarkmasterthedarkmaster
    @thedarkmasterthedarkmaster 4 วันที่ผ่านมา

    If you need a single species that could be interesting to cover Koolasuchus or Lanthanosuchus. Trilobites could be cool too

  • @richardnicklin654
    @richardnicklin654 4 วันที่ผ่านมา

    Can I vote for Desmotylids? Or maybe a series on weird outliers - like the St. Bathan’s mammal or bibymalagasy (although I think the latter might have been yet another specialised tenrec.