Saturday, October 29, 2022
HomeDinosaurEpisode 382: New stegosaurs, alvarezsaurids, and dinosaur accidents

Episode 382: New stegosaurs, alvarezsaurids, and dinosaur accidents

Episode 382 is all about Avaceratops, a small ceratopsian which will have lived alongside Zuul and Dromaeosaurus.

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On this episode, we talk about:


  • A brand new very early stegosaur, Bashanosaurus primitivus, was named from Chongqing, China supply
  • A brand new alvarezsaurid from Uzbekistan, Dzharaonyx eski, was described together with its fascinating small palms supply
  • An Amurosaurus seems to have damaged its wrist after falling, but it surely survived for not less than a couple of months supply
  • Utilizing a brand new sort of CT scan, researchers discovered the T. rex nicknamed Tristan Otto most likely had an an infection in its jaw supply
  • Researchers discovered 4 pathologies in sauropod ribs present in Chongqing, China supply
  • An evaluation of B-rex recognized some circumstances that helped to protect tender tissue in its bones supply
  • A photographer took some enjoyable photographs of squirrels “taking part in” with dinosaur toys supply
  • Capcom has a brand new sport about preventing dinosaurs, known as Exoprimal supply
  • Skyhook Video games has a Dino Safari DLC for mowing the garden in Dino Safari park supply

The dinosaur of the day: Avaceratops

  • Ceratopsian that lived within the Late Cretaceous in what’s now Montana, U.S. (Judith River Formation)
  • Seemed like different ceratopsians, walked on all fours, had a cumbersome physique and lengthy tail, and a beak, and frill on its head
  • Had a brief, fan-shaped frill
  • Small and herbivorous
  • Initially estimated to be 7.5 ft (2.3 m) lengthy
  • In 2010 Gregory Paul estimated it to be 13 ft (4 m) lengthy and weigh 1 tonne
  • Sort species is Avaceratops lammersi
  • Described in 1986 by Peter Dodson
  • Fossils present in 1981 by fossil seller Eddy Cole on Careless Creek Ranch, owned by Arthur Lammers
  • Fossils had been scattered on a prehistoric stream mattress
  • In all probability buried after its physique was swept downstream by a present
  • Peter Dodson seemed on the fossils in Cole’s fossil store when visiting in 1982, and so they had been absolutely excavated in 1984
  • First ceratopsid named since Pachyrhinosaurus (named in 1950)
  • Genus identify is in honor of Ava Cole, Eddy Cole’s spouse
  • Species identify is in honor of the Lammers household
  • In 1990, George Olshevsky up to date the identify to Avaceratops lammersorum (plural, because it referred to some individuals), however Dodson objected (singular also can confer with a single household identify)
  • In 1990, Thomas Lehman referred Avaceratops to Monoclonius, however was not accepted
  • Holotype features a partial skeleton with the decrease cranium, vertebrae, shoulder girdle, and many of the forelimbs and hindlimbs
  • Skeleton might be a juvenile or subadult
  • Pankalski and Dodson described a second cranium in 1999, of a bigger specimen
  • However a 2010 examine by Michael Ryan and others discovered “it is going to by no means be potential to definitively assign” that cranium to Avaceratops, for the reason that holotype is a juvenile with out distinctive characters, and the second cranium, presumably of an grownup, appears to be like too totally different, and it’s arduous to know in the event that they’re associated with out having a progress collection
  • Additionally mentioned that despite the fact that Avaceratops didn’t have any distinctive characters, “the specimen can’t be attributed to every other recognized centrosaurine, and so the genus can’t be synonymized or declared a nomen dubium”
  • Sister taxon to Nasutoceratops
  • Different dinosaurs that lived across the similar time and place embody the ceratopsid Medusaceratops and the hadrosaur Probrachylophosaurus

Enjoyable Reality:
Even within the Cretaceous, dinosaurs had been generally the meals of different animals.


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