Episode 407: One other carnivore for Stromer’s Riddle

Episode 407: One other carnivore for Stromer’s Riddle. A brand new abelisaurid from the Bahariya Oasis provides one more carnivorous group to the formation. Plus a brand new sauropod from Columbia and a ton of different dinosaur discoveries.

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  • New sauropod Perijasaurus lapaz was found in Colombia supply
  • A brand new abelisaurid from the Bahariya Oasis provides one more carnivorous group to the formation supply
  • A sauropod was present in a yard in Portugal supply
  • Thomas Carr and a workforce discovered fossils of T. rex, Triceratops, and Edmontosaurus on a 4-week expedition within the Badlands of Montana supply
  • A virtually full juvenile hadrosaur with pores and skin impressions was present in Dinosaur Provincial Park in Canada supply
  • The Royal Belgian Institute of Pure Sciences excavated three dinosaurs in Wyoming’s Morrison Formation supply
  • 100 million-year-old dinosaur footprints have been present in a restaurant in Sichuan province, China supply
  • 113 million yr outdated dinosaur tracks have been seen in Texas as a result of a extreme drought supply
  • In Could, Hector the Deinonychus was auctioned off for $12.4 million supply
  • In July, a Gorgosaurus skeleton was auctioned off for about $6 million supply
  • The College of New Mexico opened a Pure Historical past Science Middle supply
  • Portland, Oregon had a cartoon dinosaur artwork exhibit this summer time supply
  • Dinosaur Museum Altmühltal in Denkendorf, Germany had Little Al on show supply
  • The Royal Tyrrell Museum launched the exhibit “Views on the Artwork of Glen McIntosh” supply
  • Hong Kong Science Museum opened “The Hong Kong Jockey Membership Sequence: The Massive Eight — Dinosaur Revelation” exhibit supply
  • New public science mission Cretaceous Creatures lets eighth graders do actual science with actual fossils supply



The dinosaur of the day: Magnosaurus

  • Megalosaurid megalosauroid theropod that lived within the Center Jurassic in what’s now England (Inferior Oolite Group)
  • Regarded like different theropods, walked on two legs, had an extended snout with sharp tooth, lengthy tail
  • Thought-about to be small bodied
  • Gregory Paul estimated to be about 13.1 ft (4 m) lengthy and weigh 386 lb (175 kg)
  • Benson estimated the hip to be simply over 3.3 ft (1 m) tall
  • Benson mentioned Magnosaurus was most likely comparable in physique mass to Piatnitzkysaurus (estimated to be round 990 lb or 450 kg) however that this couldn’t be confirmed as a result of the weight-bearing limb bones have been too poorly preserved
  • Solely fragments discovered
  • Previously, had been included with Megalosaurus
  • Friedrich von Huene in 1923 named Megalosaurus nethercombensis primarily based on a partial skeleton (partial decrease jaws, vertebrae, a part of the pubis and leg bones, from probably a juvenile)
  • Damaged grownup tooth and rising tooth discovered within the decrease jaws
  • Huene named Megalosaurus lydekkeri primarily based on a tooth in 1926 (Richard Lydekker had described it in 1888)
  • Then in 1932 he renamed Megalosaurus nethercombensis to Magnosaurus nethercombensis, and referred Megalosaurus lydekkeri to it (as Magnosaurus lydekkeri)
  • He additionally named Magnosaurus woodwardi primarily based on a tibia, which he additionally by accident named Sarcosaurus andrewsi in the identical 1932 paper
  • In 1956 the identify Sarcosaurus andrewsi caught (Huene referred all materials to Sarcosaurus)
  • Magnosaurus woodwardi had numerous variations in how the bones regarded in comparison with Magnosaurus nethercombensis, and the 2 species lived at the least 20 million years aside
  • Kind and solely species is Magnosaurus nethercombensis
  • Megalosaurus lydekkeri now thought-about to be a nomen dubium (uncertain identify)
  • Genus identify means “massive lizard”
  • Till the Nineties, thought to mainly be a Megalosaurus species (wastebasket taxon, the place numerous fossils attributed to Megalosaurus that have been later discovered to be several types of dinosaurs)
  • Some variations within the bones although, like within the tibiae (decrease leg bone)
  • In 2003 Oliver Rauhut recommended Magnosaurus and Eustreptospondylus to be the identical as a result of the decrease jaws have been comparable and he renamed Eustreptospondylus oxoniensis as Magnosaurus oxoniensis however not everybody agrees
  • In 2010 Roger Benson discovered Magnosaurus to be legitimate, primarily based on foramina (gap) within the decrease jaw (dentary)
  • Different dinosaurs that lived across the similar time and place embody Megalosaurus and Duriavenator (one other theropod thought for some time to be Megalosaurus)

Enjoyable Truth:

Many “herbivorous” species as we speak have been seen consuming different animals. Some lesser recognized examples embody parrots, cows, and sheep.

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