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Episode 286: The brand new ceratopsian with a rockstar frill


    Episode 286 is all about Coronosaurus, a centrosaurine ceratopsian from Alberta, Canada.

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    On this episode, we focus on:


    • Stellasaurus ancellae was named for its star-like frill and after the music ‘Starman’ by David Bowie supply
    • New seafloor samples present that cretaceous Antarctica was a freshwater swamp supply
    • Scientists in Argentina have introduced fossils of a “Megaraptor” supply
    • Dinosaur Nationwide Monument is partially reopened, however the Quarry Exhibit Corridor and different areas stay closed supply
    • a theater in Nebraska had an internet viewing known as Dinosaur Trip supply
    • In Ferndale, Michigan, there’s a T. rex Strolling membership supply
    • A dad constructed an epic 48-foot Apatosaurus jungle health club in his yard for his children supply

    The dinosaur of the day: Coronosaurus

    • Centrosaurine ceratopsian that lived within the Late Cretaceous in what’s now Alberta, Canada (Oldman Formation)
    • Described in 2005, first as Centrosaurus brinkmani, by Michael Ryan and Anthony Russell
    • In 2012, named Coronosaurus brinkmani, by Michael Ryan, David Evans, and Kieran Shepherd
    • Genus identify means “topped lizard” (corona is Latin for crown)
    • Named due to the crown-like form of the horns on its frill
    • Distinctive in that the majority ceratopsians have particular person horns or spikes on their frills, however Coronosaurus has a cluster
    • Had a big frill and plenty of horns on its head (forehead horns over the eyes, a big nasal horn, and a few spikes/ossifications on the frill that appear to be a crown)
    • These ossifications are two clusters of curved hooks. Some level ahead, some level backwards
    • Could have been for show
    • A number of specimens have been discovered
    • Youthful Coronosaurus developed brief spikes that fused into the clusters because it aged
    • Medium sized, estimated to be about 16 ft (5 m) lengthy and weigh about 2 tonnes
    • Phil Currie discovered the fossils in two bone beds between 1996 and 2000
    • Kind and solely species: Coronosaurus brinkmani
    • Species identify refers to Donald Brinkman, for his analysis in paleoecology in Alberta (Late Cretaceous environments)
    • Michael Ryan stated he thought the hook clusters regarded just like the corona of the solar (outermost a part of the solar’s environment, which might be seen throughout a complete photo voltaic eclipse, and appears wispy–astronomers may also see it utilizing coronagraphs, telescopes that block out direct gentle from a star so you’ll be able to see the issues near it)
    • Ryan was a grad scholar when he first described Coronosaurus (as Centrosaurus brinkmani), and he stated in an Ottawa Citizen article, “My fellow graduate college students used to tease me by calling it ‘broccoli-ceratops’. “I’ve to say, there was about 30 seconds after I really thought-about calling it a broccoli-ceratops.”
    • Mentioned in 2005 it “seems indistinguishable from Centrosaurus apertus in all elements of its anatomy, aside from variations in its cranial ornamentation (nasal, parietal, and postorbital horn cores)”
    • The 2012 change was based mostly on a 2011 phylogenetic evaluation that added new characters to the combo, and the end result was Centrosaurus brinkmani and Centrosaurus apertus had been not thought-about to be sister taxon, so Centrosaurus brinkmani turned Coronosaurus brinkmani
    • Michael Ryan additionally just lately named the ceratopsian Stellasaurus, due to it’s star-shaped fringe
    • Within the Ottawa Citizen article, Jordan Mallon stated, “It’s humorous, as a result of Michael will not be a beer drinker and but he has named two dinosaurs after beers.”
    • In all probability lived on a coastal plain
    • Different dinosaurs that lived across the identical place and time embrace theropods Saurornitholestes, Daspletosaurus, Troodon, Dromaeosaurus, and Hesperonychus, ceratopsids resembling Albertaceratops, Chasmosaurus, and Anchiceratops, hardosaurids resembling Brachylophosaurus, Gryposaurus, Parasaurolophus, and Corythosaurus, thescelosaurid Albertadromeus, and the ankylosaurid Scolosaurus
    • Can see a partial cranium on the Royal Tyrrell Museum

    Enjoyable Reality:
    An grownup T. rex was about 26 Gunter’s hyperlinks lengthy and weighed about 50,000,000 carats.


    This episode is delivered to you by Columbia College Press. Their e book The Story of the Earth in 25 Rocks: Tales of Essential Geological Puzzles and the Folks Who Solved Them by Donald Prothero is now obtainable in paperback at use promo code CUP30 to get 30% off the acquisition value.