I Know Dino Podcast Present Notes: Giraffatitan (Episode 153)

In our 153rd episode, we obtained to speak with Cary Woodruff (@DoubleBeam), director of paleontology at Nice Plains Dinosaur Museum in Malta, Montana, and likewise PhD candidate on the College of Toronto. Cary is an professional in sauropods, and is the creator of a brand new paper about deciphering diplodocid development: http://palaeo-electronica.org/content material/2017/1918-deciphering-diplodocid-growth.

Episode 153 can also be about Giraffatitan, a sauropod whose title means “large giraffe.”

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On this episode, we focus on:


  • First dinosaur named within the Czech Republic, Burianosaurus augustai, an ornithopod from the late cretaceous
  • A fossilized nest of a brand new form of dinosaur egg has been present in China
  • A pair scientists are arguing that there was not a mass extinction on the finish of the Triassic
  • The Isle of Wight council is in search of a improvement companion or consortia to take over Dinosaur Isle
  • The Bureau of Land Administration plans to public sale gasoline and oil drilling rights on 146 sq. miles of land, some close to Dinosaur Nationwide Monument
  • Brookgreen Gardens in South Carolina has a brand new dinosaur exhibit, open now till April 29, it’s known as Dinosaurs!
  • A Scottsdale, Arizona leisure advanced is opening an interactive, indoor dinosaur world on Black Friday, on November 24
  • In Rosewood, Queensland, in Australia, metropolis councillor David Pahlke is getting a large dinosaur constructed for Johnston Park
  • An iOS model of Smash Up has been created primarily based on the tabletop sport, together with the dinosaur playing cards
  • Earth Contact Information posted an article about a number of the finest prehistoric animal names

The dinosaur of the day: Giraffatitan

  • Identify means “large giraffe”
  • Sauropod that lived within the Jurassic in what’s now Tanzania, in Africa
  • Kind species is Giraffatitan brancai
  • Initially regarded as Brachiosaurus brancai
  • First named and described in 1914 by Werner Janensch, however as Brachiosaurus brancai (primarily based on specimens discovered within the Tendaguru Formation in 1909 and 1912, in Tanzania, which was then German East Africa)
  • Partial skeletons have been discovered, together with three skulls, limb bones, vertebrae, and enamel
  • Brachiosaurus was named and described in 1903 by Elmer Riggs. We cowl it in episode 39
  • Brachiosaurus is without doubt one of the most well-known dinosaurs, however its picture relies primarily on Giraffatitan brancai, and never Brachiosaurus altithorax
  • Nonetheless, Brachiosaurus and Giraffatitan are thought of to be sister taxa
  • In 1988, Gregory S. Paul stated that Brachiosaurus brancai had vital variations in comparison with Brachiosaurus altithorax (the one present in North America). He thought the proportions of its trunk vertebrae have been completely different and that it had a extra gracile construct, so he created the subgenus Brachiosaurus brancai. In 1991 George Olshevsky stated there have been sufficient variations for it to be its personal genus, which turned Giraffatitan brancai
  • In 1998 an outline of a North American Brachiosaurus cranium was revealed. The cranium was discovered virtually 100 years earlier (and was the cranium Marsh utilized in early reconstructions of Brontosaurus) and was recognized as Brachiosaurus. The cranium appears to be like much like Camarasaurus in some methods (with related entrance enamel, and an extended, much less hollowed out cranium in comparison with the short-snouted, excessive crested Giraffatitan cranium)
  • Not all scientists accepted Giraffatitan as a separate genus at first, however then Michael Taylor revealed an in depth comparability of the 2 in 2009. He confirmed variations between the 2 in each fossil bone that he may evaluate (variations in measurement, form, and proportion)
  • Giraffatitan seemed just a little like a giraffe (had lengthy forelimbs and a protracted neck)
  • For a very long time, was the biggest identified dinosaur, however now different titanosaurs have been discovered which can be greater (Argentinosaurus, Patagotitan, and so forth.)
  • About 71.5-73.8 ft (21.8-22.5 m) lengthy and 39 ft (12 m) tall, primarily based on a subadult discovered
  • Might have been longer (85 ft (26 m)), primarily based on a fibula of one other specimen discovered (fibula is 13% bigger than the subadult’s)
  • Estimated to weigh 23-39 tons, although it may have been bigger (estimates are primarily based on the subadult)
  • Cranium had a excessive crest
  • For a very long time, scientists thought Giraffatitan’s nostrils have been on the highest of its head (early theories about sauropods have been they used their nostrils like a snorkel and spent loads of time underwater). Now scientists assume Giraffatitan was a land animal
  • Had nostrils close to its snout, not on the high of its head, although the nasal openings have been excessive above the eyes, in line with Lawrence Witmer’s 2001 research
  • If the nostrils have been close to the snout, it’s doable Giraffatitan used the crest on the high of its head as a resonating chamber (presumably for speaking amongst its personal species, attracting a mate, or displaying dominance)
  • Had spatulate enamel (seemed like chisels)
  • There was a speculation that Giraffatitan had a trunk, however Giraffatitan had put on and tear on its enamel that might have been from biting and tearing off plant matter (and never grinding, which might have been the case if it had a trunk and used it to tear off branches and leaves after which floor up its meals)
  • Most likely was a excessive browser, that might get to meals on the tops of bushes
  • Had claws on the primary toe of its entrance ft and first three toe of its hind ft
  • Had a small mind, with a low encephalization quotient (which estimates doable intelligence) of 0.62 or 0.79
  • Some folks used to assume Giraffatitan had a second mind, due to a sacral enlargement above the hip (however was in all probability glycogen our bodies, which saved vitality)
  • Can see Giraffatitan brancai on the Museum für Naturkunde in Berlin (one of many largest and tallest mounted skeletons on this planet)
  • The Giraffatitan in Berlin is made of 5 people (it’s a composite) and has just lately been up to date primarily based on what we learn about it
  • Can even see Giraffatitan come to stay on Google Cardboard or YouTube 360 in Giraffatitan: Again to Life in Digital Actuality. The skeleton involves life and turns right into a 3D dinosaur, and walks round

Enjoyable Truth:

Within the Two Drugs Formation, gray blue sediment signifies that it was an anaerobic setting which suggests their are seemingly good fossils. That’s as a result of there aren’t micro organism or different organisms that want oxygen round to gobble up the dinosaur (or different organisms).


This episode is dropped at you partially by TRX Dinosaurs, which makes stunning and practical dinosaur sculptures, puppets, and displays. You possibly can see some wonderful examples and works in progress on Instagram @trxdinosaurs

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