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I Know Dino Podcast: Nanuqsaurus


    Episode 11 is all about Nanuqsaurus, a small tyrannosaur that lived within the historic Arctic.

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    On this episode, we talk about:

    • The dinosaur of the day: Nanuqsaurus hoglundhi, a tiny cousin of T-rex that lived within the Arctic 70 million years in the past
    • Nanuqsaurus bought its identify from the Inupiat phrase for polar bear, in addition to from Forrest Hoglund, the donor to the Perot Museum of Nature and Science in Dallas, the place the 2 males who found Nanuqsaurus work (Tony Fiorillo and Ron Tykoski)
    • Nanuqsaurus lived in Northern Alaska, then a part of the subcontinent Larimidia, which had climate like modern-day Seattle
    • However relying on the seasons, the Arctic may nonetheless have lengthy days or quick days with lengthy nights (winter had 24 midnights)
    • The Arctic the place Nanuqsaurus lived was a coastal plain, with tall conifer forests and flowering crops
    • Fiorillo and Tykoski truly found Nanuqsaurus in 2006 (cranium and jaw fossil fragments) within the Kikak-Tegoseak quarry, on the North Slope near the Yukon border
    • However they initially ignored the invention due to a second discovery, of the horned dinosaur Pachyrhinosaurus
    • However they discovered tooth marks in Pachyrhinosaurus
    • The excavation space was 13 x 13 toes, about 400 miles northwest of Fairbanks
    • The crew was funded by the Nationwide Science Basis Workplace of Polar Applications
    • Close by Alberta is well-known for its dinosaur bone beds, however the Arctic is generally unchartered territory.
    • Nanuqsaurus exhibits how tyrannosaurines tailored to life within the Arctic
    • Nanuqsaurus is a cousin of T-rex and Tarbosaurus, however lived 1-2 million years earlier than T-rex
    • Apart from its small measurement, Nanuqsaurus appeared rather a lot like T-rex, but it surely solely weighed 1,000 kilos
    • Nanusqaurus most likely was small so it may survive winters, when prey migrated or hibernated and have become scarce
    • Curiously, animals typically develop greater on the Poles (reminiscent of polar bears, that are the most important bears), as a result of greater animals lose warmth extra slowly
    • Nanuqsaurus was the dominant carnivore in its habitat, however not less than 4 different carnivores and 4 different herbivores lived there on the identical time
    • Nanuqsaurus was 20 toes lengthy, had a 2-foot lengthy cranium, was 6 toes excessive on the hip, and had killer-whale like tooth and twiggy arms
    • It additionally had a protracted nasal cavity and nice sense of scent, which might have been helpful at midnight. Due to its heightened sense of small, it was most likely an energetic hunter, not a scavenger
    • Nanuqsaurus‘ higher jawbone (maxilla) had distinctive sockets discovered solely in adults of some superior tyrannosaurs
    • Nanuqsaurus most likely had lots of fuzz, like different tyrannosaurs (most likely warm-blooded)
    • Nanuqsaurus is a part of the subfamily Tyrannosaurinae
    • Tyrannosaurinae is one among two subfamilies of Tyrannosauridae
    • The opposite subfamily is Abertosaurinae, which incorporates Albertosaurus and Gorgosaurus
    • Albertosaurines are typically extra slender, with decrease skulls
    • Tyrannosaurinae consists of Tyrannosaurus and Tarbosaurus
    • Some scientists have made extra subdivisions inside the subfamilies, which there’s not sufficient info to make it official
    • Enjoyable reality: Dinosaurs had been truly fairly good (the neatest dinosaur was smarter than mammals that lived on the identical time)

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