I Know Dino Podcast Present Notes: Acanthopholis (Episode 132)

I Know Dino Podcast Present Notes: Acanthopholis (Episode 132)

Episode 132 is all about the Acanthopholis, the platypus of ankylosaurs (pun meant).

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On this episode, we talk about:


  • T. rex had such a strong chunk it could have precipitated “catastrophic explosion of some bones” based on Nature’s Scientific Stories
  • A theropod footprint was found imprinted in a fossilized brachiosaur vertebra and is now on show in the UK
  • New theropod, sauropod, and presumably stegosaur/ankylosaur footprints discovered on the island Oléron in France
  • Earth Contact Information Community posted a narrative a couple of observe web site of Anomoepus which had been discovered whereas setting up a pond
  • David Hone and Jordan Mallon clarify why we will’t inform female and male dinosaurs aside in an article in Paleontology
  • Sauropod coprolites give us new perception into what the long-necked giants had been consuming (and presumably ingesting)
  • The Chinese language Academy of Sciences launched an excavation zone in Yanji metropolis anticipated to cowl 10 sq. kilometers
  • The China Publish issued “Chinese language Dinosaurs” a set of postage stamps of seven dinosaurs that had been present in China
  • CNN printed a story about Chinese language artist Zhao Chuang, who brings dinosaurs to life
  • Mike Habib mentioned the Mesozoic because the “age of lifeless child dinosaurs” in an article on Inverse
  • Dinosaur Ridge Customer Middle is struggling to maintain up with the giant variety of guests and should transfer to a bigger constructing
  • The Utah Discipline Home of Pure Historical past State Park Museum in Vernal, Utah, is sponsoring a Fossil Discipline College June 19-23
  • NewsOK printed an article about dinosaurs in Oklahoma together with a whole bunch of Apatosaurus bones
  • Dinosaur Gardens simply opened for the season in Michigan and is free to go to
  • Stone Mountain Park in Georgia has an attraction known as Dinosaur Discover with 20 life-size dinosaurs that transfer and roar
  • Due to a beneficiant $10 million donation Yale will quickly have a new lecture corridor named after Othniel Charles Marsh
  • Flamborough Patio Furnishings (which is thought for making dinosaur statues) suffered from critical fireplace injury, however stays open
  • Barnaby Dixon confirmed off an incredible dinosaur finger puppet in a video
  • The Fb group Plastic Paleontology is open for all followers of prehistoric toys 
  • It seems Mookie Wilson by no means truly stated his well-known quote about dinosaurs and the 1986 article was a faux
  • The San Francisco Silent Movie Pageant screened the unique 1925 model of The Misplaced World based mostly on Arthur Conan Doyle’s novel
  • Our listener Luke created a new listing of nice dinosaur books options a few our books in addition to many different nice decisions
  • Inverse printed an excellent listing of 10 dinosaur documentaries which you can stream on-line together with the newest “The Day the Dinosaurs Died”

The dinosaur of the day: Acanthopholis

  • Title means “spiny scales”
  • Ankylosaur within the household Nodosauridae that lived within the Cretaceous in what’s now England
  • John Griffiths, a fossil collector, discovered bones in 1865 on the shoreline close to Kent, and he bought them to Dr. John Percy, a metallurgist. Percy let Thomas Huxley know concerning the bones, and Huxley paid Griffiths to dig up all of the fossils at that web site. He discovered extra bones and a few physique armor components
  • Huxley named Acanthopholis horridus in 1867
  • The species title means “scary” or “tough”
  • In 1890 Arthur Smith Woodward renamed the species title to Acanthopholis horrida, as a result of “pholis” is female
  • Kind specimen consists of three tooth, a primary skull, dorsal vertebra, spikes, and scutes
  • Has a protracted, complicated historical past
  • In 1869, Harry Govier Seeley named three new Acanthopolis species: macrocercus, platypus, and stereocercus. Then he cut up off materials of Acanthopholis stereocercus and named a brand new Anoplosaurus species based mostly on a part of it: Anaplosaurus main. And he described one other species, Acanthopholis eucercus, based mostly on six caudal vertebrae. However in 1902 Franz Nopcsa reassigned that Acanthopholis main, and renamed Anoplosaurus curtonotus to Acanthopholis curtonotus.
  • In 1879 Seeley additionally named Syngonosaurus based mostly on a part of materials from Acanthopholis macrocercus
  • In 1956, Friedrich von Huene renamed Acnthopholis platypus to Macrurosaurus platypus (not everybody agrees with this)
  • Then in 1999 Xabier Pereda-Superbiola and Paul Barrett reviewed all Acanthopholis materials and located all species had been nomina dubia (specimens had been composites of ankylosaur and ornithopod stays). Acanthopholis platypus, for instance, had sauropod metatarsals. Seeley additionally had two unpublished names he used to label museum specimens: Acanthopholis hughesii and Acanthopholis keepingi. These are nomina nuda (means bare title)
  • Initially Huxley assigned it to Scelidosauridae. Then in 1902 Nopcsa created the household Acanthopholididae, and later named the subfamily Acanthopholinae (modified it to Acanthopholidae in 1928). Now it’s thought of to be a nodosauridae in ankylosauria
  • Had thick armor fabricated from oval keeled plates that had been horizontal on the pores and skin
  • Had lengthy spikes on the neck and shoulder, alongside the backbone
  • Quadrupedal and herbivorous
  • About 10-18 ft (3-5.5 m) lengthy and weighed about 840 lb (380 kg) (not identified for certain, because it’s based mostly on fragments)

Enjoyable reality:

Strongest chunk power ever measured: “16,414 N [3,690 lb] was straight measured for a bob-tailed, 4.51 m Australian saltwater crocodile [Crocodylus porosus]”

  • In comparison with an estimated 7,761 lb for a T. rex
  • People prime out at about 200 lb on the molars
    • T. rex can chunk about 40 instances as robust as a human
    • Regular human chewing is about 70 lb

Highest chunk stress ever measured: “2,473 MPa [358,678 psi] was deduced for a 2.99 m” Australian saltwater crocodile

  • In comparison with an estimated 431,000 psi for a T. rex
    • It solely takes 65 MPa (9,400psi) to interrupt bone with one chunk


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