Episode 371 is all about Probactrosaurus, a hadrosauroid that lived in the Late Cretaceous in what is now Inner Mongolia, China.
We also interview David Levering, Camps Director at the Fort Hays State University’s Sternberg Museum of Natural History and creator of the Sternberg Museum of Natural History Online. Check out our video of the virtual museum at https://youtu.be/MCbdT3xOIBM
Big thanks to all our patrons! Your support means so much to us and keeps us going! If you’re a dinosaur enthusiast, join our growing community on Patreon at https://www.patreon.com/iknowdino.
You can listen to our free podcast, with all our episodes, on Apple Podcasts at: https://itunes.apple.com/us/podcast/i-know-dino/id960976813?mt=2
In this episode, we discuss:
- The first toothless ceratosaur from South America, Berthasaura leopoldinae, was found in Brazil source
- A new Deinonychus-sized raptor, Vectiraptor greeni, was found on the Isle of Wight source
- Marvel’s Moon Girl and Devil Dinosaur animated series has a new trailer source
- A new photo from Jurassic World: Dominion shows Owen Grady taming a Parasaurolophus in the snow source
The dinosaur of the day: Probactrosaurus
- Hadrosauroid that lived in the Late Cretaceous in what is now Inner Mongolia, China (Dashuigou Formation)
- Looks like a typical hadrosaur, with a duckbill and bulky body
- Medium-sized and gracile
- Estimated to be 18 ft (5.5 m) long and weigh 1 tonne
- Had a narrow snout, and elongated jaw
- Had tooth batteries
- No crest on the skull
- Had long, slender arms and hands and a small thumb spike
- Probably mostly walked on four legs
- Fossils found in 1959 and 1960 during a Russian-Chinese expedition
- Holotype is a partial skeleton with a skull
- Another partial skeleton and fragments were also found
- Described in 1966 by Anatoly Konstantinovich Rozhdestvensky
- Type species is Probactrosaurus gobiensis
- Genus name means “before Bactrosaurus”
- Genus named refers to the hypothesis that Probactrosaurus was a direct ancestor of Bactrosaurus (scientists don’t think that anymore)
- Species name refers to the Gobi desert
- Rozhdestvensky named a second species, Probactrosaurus alashanicus, based on fragments, in 1966 based on the back of a skull
- Species name refers to the Alxa League (at the western part of Inner Mongolia)
- In 2002, David Norman revised Probactrosaurus. He said the holotype of Probactrosaurus alashanicus was lost and that it was a synonym of Probactrosaurus gobiensis
- Lü Junchang named Probactrosaurus mazongshanensis in 1997, based on fossils found in 1992 (a partial skull and skeleton)
- Species name refers to the Mazong Shan region
- Later it was formally described and renamed as Gongpoquansaurus
- Probactrosaurus may be closely related to Siamodon, an iguanodontian found in Thailand, but they have different numbers of tooth positions
Fun Fact: It’s unlikely that dinosaurs had venom, but some of them may have been toxic.
This episode is brought to you by our patrons. We just released a bonus episode covering many more paleontological discoveries for all of our patrons. Head to Patreon.com/iknowdino to get access and help us keep making the show.
Tell us what you think about our show in our 2021 Year End Survey! We want our show to be as enjoyable as possible, and your input will help us improve. Head to bit.ly/ikdsurvey21 to leave us your feedback.
Share your thoughts