Episode 481: Tiny Theropods in a Tyrannosaur’s Tummy. A brand new juvenile Gorgosaurus was discovered with oviraptorosaur legs preserved as intestine contents; A model new Stegosaur was named; Proof of Albertosaurus cannibalism; And a few troodontids could have been herbivores
Information:
- New stegosaur Yanbeilong ultimus supply
- A brand new juvenile Gorgosaurus preserved the very best set of Citipes legs discovered up to now as intestine contents supply
- Albertosaurus could have been a cannibal supply
- Troodontids could have been extra herbivorous than we thought supply
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The dinosaur of the day: Urbacodon
- Troodontid that lived within the Late Cretaceous in what’s now Uzbekistan (Dzharakuduk Formation)
- Paleoart depicts it as very bird-like, with an extended tail, lengthy legs with sharp claws, and had a beak
- Troodontids have a number of bird-like options
- Troodontids are small to medium in measurement and identified from North America and Asia
- They had been agile, with good imaginative and prescient and listening to and a comparatively massive mind
- That they had lengthy legs and had been in all probability quick runners
- Troodontids are uncommon
- Kind species is Urbacodon itemirensis
- Named in 2007 by Alexander Averianov and Hans Sues
- Genus title means “URBAC tooth”
- URBAC is an acronym in honor of the Uzbek, Russian, British, American, and Canadian scientists who labored on the invention
- Species title refers to Itemir, the sort locality
- First dinosaur bones discovered within the formation had been present in 1914 by A. D. Arkhangelsky
- Plenty of geologists visited the realm within the Nineteen Thirties, and the very best discover of the time was a whole turtle shell
- Holotype is a single left decrease jaw (dentary) with tooth
- Decrease jaw discovered on September 9, 2004
- Dentary is 3.12 in (79.2 mm) lengthy and has 32 tooth
- Dentary additionally seems to be straight
- Had a niche between the entrance 24 tooth and again 8 tooth, however that might be resulting from particular person variation
- Enamel weren’t serrated
- One of many few troodontids with unserrated tooth
- Different troodontids with unserrated tooth embody Archaeornithoides, Byronosaurus, and Mei
- Appears just like Byronosaurus and Mei, however has variations in grooves and tooth crowns and is larger than Mei
- Carefully associated to Byronosaurus and Xixiasaurus
- Assist present extra troodontid variety in Asia than beforehand thought
- Enamel and different fossils described by Lev Nesov discovered within the close by Bissekty Formation had been referred to Urbacodon sp.
- In 2016 Averianov and Sues described in additional particulars the fossils they assigned to Urbacodon sp.
- Consists of tooth, elements of the jaw, a partial braincase, vertebrae, elements of the ft
- Have sufficient similarities to realize it belongs to Urbacodon, however don’t know sufficient to assign to the identical species
- Urbacodon spp. seems to be just like Byronosaurus, Gobivenator, and Xixiasaurus (no tooth serrations)
- Did a phylogenetic evaluation and didn’t discover a clade of troodontids from Asia with unserrated tooth
- Different dinosaurs that lived across the similar time and place embody sauropods, tyrannosauroids, troodontids, hadrosauroids, and the ceratopsian Asiaceratops
- Different animals that lived across the similar time and place embody salamanders, turtles, crocodyliformes, pterosaurs
Enjoyable Truth:
A 10Kg (22 pound) juvenile Citipes would have had lower than 4Kg (8 kilos) of meat (primarily based on ostrich proportions).
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