In our eighth episode of I Know Dino, we had the pleasure of speaking with Taylor McCoy, fellow dinosaur enthusiast and creator of the website Everything Dinosaurs, as well as the Google+ community.
You can listen to our free podcast, with all our episodes, on iTunes at:
Also check out Taylor’s excellent guest post on our site.
In this episode, we discuss:
- The dinosaur of the day: Juratyrant
- The name Juratyrant means “Jurassic Tyrant”
- Juratyrant was a small tyrannosaurid, only about 3 meters long, from the Kimmeridge Clay Formation of Dorset, England, in 1984
- Juratyrant was a small predator, and existed before larger tyrannosaurids. But it’s not clear what they looked like or how they lived
- Juratyrant was classified as its own species based on a partial skeleton, which included a complete pelvis, leg, neck, back, and tail vertebrae
- But Juratyrant skull and forelimbs have not yet been found
- Juratyrant was mentioned in several papers but was not formally described until 2008
- In 2008, paleontologist Roger Benson wrote about Juratyrant but he thought it was part of the genus Stokesosaurus. So Juratyrant was originally called Juratyrant langhami, after Peter Langham, who discovered the bones
- Later studies found Juratyrant may not have been a close relative of Stokesosaurus clevelandi
- In 2013 Benson and Stephen Brusatte reclassified Juratyrant langhami as its own species; it kept the name laghami because that was its original species name
- Juratyrant probably ate smaller dinosaurs, juveniles of larger dinosaurs, and small mammals, reptiles, and amphibians; it probably had feathers
- Juratyrant weighed about 500 pounds, a moderate size, and probably had a long, narrow skull
- Until recently, not many tyrannosaurs were found in England (usually associated with North America and Asia)
- The first tyrannosaur in England was discovered in 2001; it is called Eotyrannus (name means “Dawn Tyrant” and it was fast and lightweight, with long arms
- Juratyrant was part of the family Proceratosauridae, which lived in the middle Jurassic to early Cretaceous
- Proceratosauridae was first named in 2010 by Oliver Rauhut and his colleagues, when they reevalusated the genus Proceratosaurus
- Proceratosaurus was a genus of small theropod carnivores that lived in England; it’s considered to be a coeluroaur (more closely related to birds than carnosaurs) and a tyrannosauroid
- Proceratosaurus was also most closely related to the Chinese tyrannosauroid, Guanlong (means “Crowned Drago”)
- Fun fact: To identify a new species, scientists only need one dinosaur skeleton (either complete or partial). Nearly half of the approximately 1200 named dinosaurs have been identified based on only one skeleton.
For those who may prefer reading, see below for our interview with Taylor McCoy:Continue Reading …