Dimetrodon is Not A Dinosaur



Submit your own photos of misinformed Dimetrodon toys and games to http://isnotadinosaur.tumblr.com !

Learn more about the Field Museum’s fossil mammal and synapsid collection: bit.ly/1sYstC5

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NEW BLOG! http://isnotadinosaur.tumblr.com
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Major thanks to Kenneth D. Angielczyk, Ph.D. Associate Curator of Paleomammalogy for his generous help in the creation of this episode! You can read his paper “Dimetrodon is Not a Dinosaur” here: http://bit.ly/1nfXvrH

Additional thanks to Bill Simpson for providing the physical specimens from the Fossil Vertebrate collection!

Producer, Writer, Creator, Host:
Emily Graslie

Producer, Editor, Camera:
Tom McNamara

Theme music:
Michael Aranda

Created By:
Hank Green

Production Assistant:
Katie Kirby
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Filmed on Location and Supported by:
The Field Museum in Chicago, IL
(http://www.fieldmuseum.org)

Huge thanks to synapsids like Tony Chu, Seth Bergenholtz, Martina Šafusová, and Moyaccercchi for translating this episode!

source

Dinosaur Headlines from Reddit

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46 thoughts on “Dimetrodon is Not A Dinosaur

  1. At no point does the Jurassic Park toy suggest it is a dinosaur and there is no reason for dimetrodon to not appear in Jurassic Park, other than maybe its DNA not being preserved becauae it's that much older. Jurassic Park has only 2 dinosaurs from the jurassic period: brachiosaurus and dilophosaurus. The star dinosaurs, T. Rex and the raptors, are from the cretacious period. Several non-dinosaurs have also appeared in the series including pteranodon and mosasaurus.

  2. That sail wasn't likely for temperature regulation. I'm prepping a Sphenacodon ferox, like the reconstruction at the Field Museum. Sphenacodons had no big sail, just a low ridge on their backs. The lived at the same time, in the same places, ate the same things, and are nearly identical to Dimetrodon with the exception of the sail. If your close cousin doesn't need a sail to thermoregulate, that's a darn good indication the sail's for something else…ding, ding…display! Dimetrodon gets all the attention because of that silly sail, and it's so sexy it got him wrongly pop-culture lumped in with the dinosaurs.

  3. Definition of a mammal: a mammal is an animal that has at least some hairs on it's body, is warm blooded and has a four chambered heart. A female mammal has mammary glands and feeds there young on milk from her own body. Most but not all mammals are quadruped, however aquatic mammals such as whales, seals and dolphins have evolved their legs into flippers which is more suited for swimming.

  4. During my education "mammal like reptile" was often used to describe the dinosaurs. And they were knowledgeable enough to know that synapsids were not dinosaurs and thar birds evolved from bipedal dinosaurs.
    Birdlike reptile would fit better I think. I guess my teachers saw dinos rather like egglaying elephants and not huge flightless birds.

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