Episode 492: Dinosaur Brains and Early Dinosaur Evolution. How we will inform dinosaur mind dimension and form from their skulls; Proof from the mind of Thescelosaurus displays it’s going to have burrowed; Plus an replace on Ornithoscelida
Information:
- Mind dimension numerous in dinosaurs supply
- Seems, the dinosaur Thescelosaurus had a formidable sense of scent, a delicate vestibular machine, however horrible listening to—all which would possibly imply it was once a burrower supply
- A brand new mountaineering path with 134 sauropod dinosaur footprints is now open to the general public in Colorado, in keeping with The Denver Gazette supply
- The Jean & Ric Edelman Fossil Park is opening in June in New Jersey supply
Listener Questions:
- What would an actual “trendy tyrannosaur” appear to be?
- Replace at the Ornithoscelida debate (the place theropods and ornithischians are grouped in combination). We additionally provide an explanation for Saurischia (sauropods + theropods) and Phytodinosauria/Ornithischiformes (sauropods + ornithischians).
Sponsors:
You’ll be able to dig up actual dinosaur bones this summer season with Colorado Northwestern Group Faculty! Sign up for them for a two week immersive box paleontology enjoy digging up dinosaur bones from the Jurassic duration in Northwest Colorado. There are two scheduled digs: July 6–July 20 and July 22–August 5. There also are two concurrent immersive lab ways techniques to be had. Get all of the main points and sign in on-line at cncc.edu/dinodig
This episode is dropped at you through Rosetta Stone – The all-in-one language app. With Rosetta Stone, you’ll have the whole thing you wish to have to be informed a language and use it in the actual international. They provide immersive classes, writing activates, and tasty actions to organize you for actual existence conversations. You’ll be able to pick out and make a selection the teachings that paintings right for you and create a customized enjoy this is each a laugh and tasty. Get able for existence’s adventures with over 50% off for I Know Dino listeners at RosettaStone.com/dino
The dinosaur of the day: Dracovenator
- Dracovenator, request from Morgan by means of patreon/discord
- Neotheropod that lived within the Early Jurassic in what’s now South Africa (Elliot Formation)
- Medium sized, estimated to be as much as 18 to 21 feet (5.5 to six.5 m) lengthy and weigh 550 lb (250 kg)
- Sooner than Dracovenator was once described, scientists knew from footprints there have been theropods present in its biozone (space the place it was once discovered)
- Imaginable that Dracovenator made the massive theropod tracks discovered
- Regarded very similar to Dilophosaurus, walked on two legs, had a protracted tail
- Other from Dilophosaurus in line with main points within the jaws and enamel
- Cranium estimated to be about 50 cm or just about 20 in lengthy
- Paleoart displays two crests on most sensible of its head (the ones bones haven’t been discovered, however cranium bones which have been discovered are very similar to Dilophosaurus)
- Had lumps and bumps at the decrease jaw, like Dilophosaurus, however smaller
- Had lengthy, narrow decrease jaws that gradually curved
- Had serrated enamel
- Had a slender snout that tapered towards the top
- Had a kink in its higher jaws
- Small snout is very similar to Coelophysis rhodesiensis (a.okay.a. Megapnosaurus rhodesiensis), however had extra compressed, blade-shaped serrated enamel within the premaxilla (very entrance of the jaw)
- Kind species is Dracovenator regenti
- Holotype is a partial cranium
- Fossils discovered through James Kitching and Regent “Lucas” Huma
- Present in sandstone
- Described and named through Adam Yates in 2005
- Genus identify way “dragon hunter”
- Genus identify refers back to the dinosaur more than likely preying on prosauropods and being discovered within the foothills of the Drakensberg Vary (way Dragon’s Mountain in Dutch)
- The species identify is in honor of “the past due Regent ‘Lucas’ Huma, Prof. Kitching’s long-term box assistant and buddy”
- A 2nd specimen was once initially considered Syntarsus rhodesiensis, and located in 1981. It was once a neatly preserved snout
- Yates discovered the snout that was once referred to Syntarsus could be a juvenile specimen of Dracovenator
- Mentioned Syntarsus in episode 456 (now Megapnosaurus—lengthy tale)
- Megapnosaurus appeared so much like Coelophysis (had a protracted tail, walked on two legs, had brief palms, and a protracted face)
- Jaws of the snout had been clamped close (were given so compressed, the scientists that studied it in 1999 stated it wasn’t value making an attempt to split the jaws—additionally concept the specimen were given so beaten all of the main points within the jaw can have been misplaced anyway)
- Yates stated Dracovenator had a “mosaic of coelophysoid and complicated theropod traits”
- Almost certainly lived on a floodplain
- Different dinosaurs that lived round the similar time and position come with quite a lot of sauropodomorphs corresponding to Aardonyx, Antetonitrus, Arcusaurus, Gryponyx, Ignavusaurus, Massospondylus, Pulanesaura, and Sefapanosaurus, ornithischians corresponding to Eocursor, Fabrosaurus, Lesothosaurus, and Pegomastax, the coelophysid Megapnosaurus
- Different animals that lived round the similar time and position come with crocodylomorphs and cynodonts
A laugh Reality:
In line with the Dinosaur Heresies, pterosaurs are dinosaurs.
Thanks Consumers!
Your strengthen way such a lot to us and assists in keeping us going! Should you’re a dinosaur fanatic, sign up for our rising neighborhood on Patreon at patreon.com/iknowdino