Episode 79 can also be about Abelisaurus, an apex predator from Argentina which will have hunted titanosaurs.
Be part of fellow dinosaur fanatics and assist I Know Dino on Patreon!
https://www.patreon.com/iknowdino
Thanks a lot to all our present Patreon supporters! Your assist retains us going every week!
You’ll be able to hearken to our free podcast, with all our episodes, on iTunes at:
https://itunes.apple.com/us/podcast/i-know-dino/id960976813?mt=2
On this episode, we talk about:
- The dinosaur of the day: Abelisaurus
- Identify means “Abel’s lizard”
- Abelisaurid theropod that lived within the Late Cretaceous in what’s now Argentina
- Named after Roberto Abel, who discovered the kind specimen, and was additionally the director of the Museum of Cipolletti in Argentina, the place the specimen is saved
- Abel discovered the holotype in 1983; one fossil (partial cranium with no decrease jaws), however cranium is estimated to be 33 inches (85 cm) lengthy
- Named by Jose Bonaparte and Fernando Emilio Novas in 1985
- Sort species is Abelisaurus comahuensis
- Species identify is in honor of the Comahue area of Argentina, the place the bones had been discovered
- Paper Abelisaurus comahuensis, Carnosauria from the Late Cretaceous of Patagonia by Jose Bonaparte and Fernando Novas, revealed in 1985
- Carnivore
- Grew as much as 23-30 ft (7-9 m) lengthy, primarily based on one partial cranium
- Gregory Paul estimated Abelisaurus to weigh 3 tons and be 33 ft (10 m) lengthy (in 2010)
- In all probability an apex predator. Gregory Paul mentioned in 2010 Abelisaurus could have hunted titanosaurs
- In all probability had quick entrance limbs and lengthy legs
- Abelisaurus helped scientists higher perceive theropods from the southern hemisphere
- Broad cranium within the again, so Bonaparte and Novas in contrast it to Tyrannosauridae (had extensive skulls), some variations although (not a part of Tyrannosaur household)
- Assume Abelisaurus regarded like a smaller T-rex
- Abelisaurids have quick heads
- Cranium could have had a crest, primarily based on tough ridges on the snout
- Had 4 small tooth within the premaxilla, and maxilla had 7-13 bigger tooth
- Excessive eye sockets, and enormous fenestrae within the cranium above the jaw
- Holes within the cranium make it lighter, which can have helped it steadiness its giant cranium (bigger holes than in Tyrannosauridae)
- Created a brand new household, Abelisauridae
- Initially thought it was Carnosauria, however then different abelisaurids had been discovered (Aucasaurus, Carnotaurus, Majungasaurus) that reveals they had been Neoceratosauria as a substitute of carnosaurs)
- In 2009 Novas mentioned Aucasaurus garridoi could also be a junior synonym of Abelisaurus, however that hasn’t been accepted
- Abelisauridae means “Abel’s lizards” and is a household of theropods
- They lived within the Jurassic and Cretaceous in Gondwana, and have been present in Africa, South America, India, and Madagascar (could have additionally lived within the Late Jurassic in Portugal)
- Carnivorous, with stocky hindlimbs, quick however tall skulls, and crests on the cranium
- Most had been between 17-30 ft (5 to 9 m) lengthy
- Only some superior abelisaurids have been discovered with full skeletons, so it’s not clear precisely how all of them regarded (many are identified from cranium bones)
- Cranium is much like carcharodontosaurids, so the teams could have been associated
- Enjoyable Reality: From the Coursera course on theropod dinosaurs: “as many as 42 main avian teams had already break up earlier than the tip of the Cretaceous.”