Episode 507: 3 New Troodontids from Mongolia, China, and Japan. Harenadraco, the sand dragon; Hypnovenator the sleep hunter; and Urbacodon norelli, Norell’s URBA-tooth are all just lately named troodontids. Plus some new excellent child’s books and our 6th Di-Know-It-All Problem.
Information:
- The “sand dragon” from Mongolia, Harenadraco prima [sic], is the primary troodontid from the Baruungoyot Formation supply
- There’s a brand new troodontid dinosaur, Hypnovenator matsubaraetoheorum, present in a napping place in Japan supply
- There’s a brand new troodontid species, Urbacodon norelli, recognized for its massive distinctive enamel supply
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Di-Know-It-All Problem:
You’ll be able to win a big Spinosaurus enamel, fossilized leaf, and extra through profitable our Di-Know-It-All Problem! Every week from episode 502 to 509 we’ll learn a puzzle at the display which you’ll be able to input to win through answering questions. This week you’ll be able to input at bit.ly/dinochallenge507 and for those who’re a patron you’ll be able to resolution the consumer query at patreon.com/posts/110070921. All of the regulations for the problem are at bit.ly/dinochallenge24
The dinosaur of the day: Tianyuraptor
- Dromaeosaurid dinosaur that lived within the Early Cretaceous in what’s now Liaoning, China (Yixian Formation)
- Lived about 122 million years in the past
- Appeared rather like Velociraptor, however had a lot shorter fingers
- More than likely lined in feathers
- No feathers discovered with Tianyuraptor
- Had a protracted tail, lengthy legs
- Tail was once lengthy, at about 38 in (about 96 cm)
- Had sickle claws on the second one feet
- Had a proportionally massive cranium, which was once longer than the femur (thigh bone)
- Had stout enamel
- Medium-sized
- Estimated to be about 2 m lengthy (about 6.5 toes)
- Very similar to different raptors present in Liaoning, however extra basal
- Categorized as a basal microraptorine, regardless that it’s a lot higher than different recognized microraptorines (and no longer for sure this is a microraptorine, as it has some options but additionally some options of unenlagiines)
- Kind specimen had options that had been observed in dinosaurs that lived in Gondwana (Southern Hemisphere) and no longer Laurasia (Northern Hemisphere)
- 6th dromaeosaur described from the Jehol Team (after two species of Sinornithosaurus, two species of Microraptor, and Graciliraptor)
- Had lengthy decrease legs, like different microraptorines (other from different dromaeosaurids, that experience slightly quick decrease legs)
- Had a small wishbone (furcula) and quick fingers
- Palms had been simplest 53% the period of the legs, which isn’t the same as different raptors (maximum have lengthy fingers which are over 70% the period of the legs)
- More than likely couldn’t fly or flow, in accordance with the quick fingers, small wishbone, and large shoulder bones
- More than likely used its fingers in numerous tactics from different raptors (no longer for flying or catching prey)
- Perhaps had feathers for show
- Had a number of distinctive options, such because the period of the center tail vertebrae had been greater than two times so long as the again vertebrae
- Is helping display extra variety with dromaeosaurids (Microraptor, for instance had lengthy fingers)
- Every other dromaeosaurid that’s massive with proportionally quick fingers present in Liaoning is Zhenyuanlong (regardless that they’re no longer intently comparable)
- Kind species is Tianyuraptor ostromi
- Named in 2009 through Xiaoting Zheng and others
- Genus identify refers back to the Shandong Tianyu Museum of Nature, the place the fossils are saved
- Genus identify way “Tianyu’s robber”
- Species identify ostromi is in honor of John Ostrom, for his contributions to the learn about of raptors
- Holotype is just about entire and entirely articulated (simplest lacking the top of the tail)
- Holotype is most likely a sub-adult, in accordance with having some portions of the skeleton unfused
- No comfortable tissues preserved (many dinosaurs discovered from that house have comfortable tissues preserved)
- 25 tail bones are preserved, they usually’re articulated (simplest 3 at maximum considered lacking)
- Lived in a rainy, humid local weather that still had dry seasons
- Had chilly winters
- Different dinosaurs that lived round the similar time and position come with the ankylosaur Liaoningosaurus, the hadrosaur Jinzhousaurus, the compsognathid Sinosauropteryx, dromaeosaurs like Sinornithosaurus, troodontids like Jianianhualong, and a lot of birds
- Different animals that lived round the similar time and position come with pterosaurs, reptiles, lizards, mammals, and fish
A laugh Reality:
Other theropods advanced other air sac techniques.
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