Episode 513: Updates on Dinosaur Development and Growth. Juvenile Daspletosaurus cranium bones; Fashionable birds have excessive Encephalization Quotients from their non-avian dinosaur ancestors; Dinosaur dimension estimate issues; Plus new non-fiction dinosaur books
Information:
- Three immature Daspletosaurus cranium bones assist present how the dinosaur modified (and didn’t change) because it grew up supply
- Fashionable birds have excessive EQs which they developed from non-avian dinosaurs supply
- Scientists warning on tips on how to estimate sizes and physique shapes of extinct animals (watch out what animals you examine it to) supply
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The dinosaur of the day: Suzhousaurus
- Therizinosauroid dinosaur that lived within the Early Cretaceous in what’s now China (Xiagou Formation and Zhonggou Formation)
- Vulture like, with the neck and head, however with lengthy arms and claws, and far bigger, strolling on two legs, lengthy tail, sort of skeksis like
- Herbivorous theropod
- Enjoyable truth: therizinosaurs had been first regarded as large turtle kinfolk
- Massive, estimated to be as much as 20 ft (6 m) lengthy and weigh over 3 tons
- Helps present therizinosauroids obtained massive early on
- Had one of many longest identified higher arm bones of any theropod
- Had a large physique
- In all probability waddled
- Had a big stomach
- Had strong legs
- Had a brief tail
- Had lengthy claws and a protracted neck
- Had a beak
- Could have had some feathers, primarily based on its relative Beipiaosaurus
- Vertebrae wasn’t that gentle (probably not pneumatized)
- Kind species is Suzhousaurus megatherioides
- Two specimens discovered throughout fieldwork in 1999 and 2004
- Described in 2007 by Daqing Li and others
- Genus title means “Suzhou lizard”
- Genus title refers to Suzhou, the previous title for the Jiuquan space the place the fossils had been discovered
- Species title megatherioides refers to it wanting like the enormous floor sloth Megatherium
- Full title means “large sloth-like reptile from Suzhou”
- Authors stated Suzhousaurus is perhaps the identical as “Nanshiungosaurus” bohlini, a therizinosauroid named earlier that was present in the identical space, however is understood from only a few fossils (so exhausting to match)
- Holotype is a partial skeleton (no cranium), and features a proper higher arm, proper shoulder, partial ribs, components of the hips, and 10 again vertebrae
- A extra full skeleton was described in 2008, which incorporates extra again vertebrae, the hips, a part of the neck, and each femora (thigh bones). Fossils present in 2004
- In each specimens, the left pubis was discovered and was discovered to be the identical species
- Additionally discovered an remoted tooth
- Lived on a heat, semi-arid plan with shallow, momentary lakes
- Different dinosaurs that lived across the similar time and place embody ornithomimosaurs like Beishanlong, tyrannosauroids like Xiongguanlong, the small neoceratopsians Archaeoceratops and Auroraceratops, hadrosaurs, and sauropods
Enjoyable Truth:
The smallest identified Microraptor had a thigh bone lower than 5 cm (lower than 2 in) lengthy
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