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I Know Dino Podcast Present Notes: Dryosaurus (Episode 53)


    Episode 53 is all about Dryosaurus, whose identify means “tree lizard.”

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    On this episode, we talk about:

    • The dinosaur of the day: Dryosaurus
    • Identify means “tree lizard”, due to its habitat (forest), and never it’s oak-leaf like form of its cheek enamel (as some folks say)
    • Lived in Jurassic
    • Samuel Wendell Williston in Wyoming discovered ornithopod fossils in 1876. Charles Marsh named them a brand new species of Laosaurus (a hypsilophodont) in 1878, Laosaurus altus (altus means tall). In 1894, Marsh made it its personal genus, Dryosaurus (an iguanodont)
    • Kind species is Dryosaurus altus
    • Holotype is a partial skeleton with a principally full cranium and decrease jaws. Different specimens have been discovered (rear half of skeletons and partial skeletons)
    • Different species have been named as a part of Dryosaurus genus. One was on accident. In 1903, Giuseppe de Stegano by accident renamed Crocodilus phosphaticus to Dryosaurus phosphaticus, however he meant to name it Dyrosaurus phosphaticus. Eric Buffetaut modified it to Dyrosaurus phosphaticus in 1981
    • Valdosaurus canaliculatus and Dysalotosaurus lettowvorbecki (episode 20) was once thought-about to be Dryosaurus
    • Fossils discovered within the U.S.
    • Dryosaurus additionally present in Tanzania (kind of)
    • In 1995, paleontologist Peter Galton wrote the paper “The Ornithopod Dinosaur Dryosaurus and a Laurasia-Gondwanaland Connection within the Higher Jurassic”
    • The paper in contrast Dysalotosaurus lettowvorbecki from Tanzania, East Africa to Dryosaurus from the Morrison Formation in North America, and located similarities, which was extra proof there was a land connection between Laurasia and Gondwana within the Higher Jurassic interval
    • Dryosaurus had a protracted neck, lengthy legs, and a protracted stiff tail
    • About 8-14 ft (2.4-4.3m) lengthy and weighed 170-200 kilos (77 to 91 kg)
    • A dig website discovered close to Uravan, Colorado has a whole lot of D. altus fossils, with specimens from all ages
    • All recognized specimens of Dryosaurus have been nonetheless rising, so it’s unclear how large a completely grown grownup obtained
    • Herbivore, with beak and cheek enamel, and presumably cheek like constructions to carry meals in its mouth
    • Ate low rising vegetation
    • Quick arms, with 5 digits on every hand
    • Had three toes
    • Quick runner, used tail to counterbalance
    • Working away was most likely essential protection
    • Could have traveled in herds
    • Could have taken care of its younger (eggs have been discovered Hypsilophodontid nests
    • At Dinosaur Nationwide Monument in Utah, scientists discovered a Dryosaurus hatchling, which exhibits that like different vertebrates, child Dryosaurus had giant eyes and a small snout, and because it grew up eyes turned proportionally smaller and snout proportionally longer
    • Dinosaurs that lived alongside Dryosaurus was Camptosaurus, Stegosaurus, Othnielosaurus
    • Predators included Saurophaganax, Torvosaurus, Ceratosaurus, Marshosaurus, Stokesosaurus, Ornitholestes, and Allosaurus
    • Can see a juvenile cranium on the Carnegie Museum
    • Juvenile skulls are typically more durable to search out, as a result of they’re extra fragile
    • Mounted grownup Dryosaurus on the Carnegie Museum of Pure Historical past is the one mounted Dryosaurus altus
    • In August 2014, Dryosaurus was 3D printed
    • Paleontologist Jeffrie Parker, and Kirk Brown from GoEngineer, a Stratasys retailer (3D printer) printed a mannequin of Dryosaurus that Parker had present in Wyoming
    • They scanned items of the Dryosaurus cranium and bones then printed it on a Stratasys uPrint SE Plus 3D Printer (20 information, printed in 5 batches)
    • Dryosaurus was the most important dinosaur 3D printed at GoEngineer (50 inches by 15 inches)
    • In accordance with Parker on the Stratasys weblog, “3D printing permits a paleontologist to rapidly reproduce a fossil bone that can be utilized for educational examine and for constructing museum reveals that may be loved by everybody. Having a 3D printer is like having your personal little robotic manufacturing facility.”
    • GoEngineer printed two Dryosaurus skeletons, one for Parker to review and one to show for purchasers
    • Subsequent, Parker plans to print extra 3D dinosaurs and create a tableau. He plans to print two Allosaurs and a Ceratosaur
    • Dryosauridae, to not be confused with Dyrosauridae (a household of extinct crocodyliforms)
    • Dryosaurids have been primitive iguanodonts
    • Lived within the Jurassic and Cretaceous in Africa, Europe and North America
    • Iguanodonts have been herbivores that lived within the Jurassic and Cretaceous
    • Contains Camptosaurus, Callovosaurus, Iguanodon, Tenontosaurus
    • Enjoyable Reality: Fossilized parasites in amber might have contaminated dinosaurs.