Episode 305 is all about Dubreuillosaurus, a megalosaurid theropod from France that’s identified from a juvenile holotype.
We additionally interview Alex & Katie Hastings, Alex is the Fitzpatrick Chair of Paleontology on the Science Museum of Minnesota. Katie is a husbandry supervisor who has labored with many animals together with trendy raptors. They lately began the podcast Squabbling Squibs the place they’ve been discussing Jurassic Park (the e-book). We had been additionally lately on an episode of their podcast.
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On this episode, we talk about:
Information:
- Yamanasaurus is the primary dinosaur ever named from Ecuador supply
- A brand new museum, Western Australia Museum Boola Bardip can be opening in November supply
- Stan the T. Rex is on show at Rockefeller Heart till October twenty first when it is going to be auctioned off supply
- A brand new VR recreation, Jurassic World: Aftermath, is coming to Oculus Quest in December supply
The dinosaur of the day: Dubreuillosaurus
- Dubreuillosaurus, request from Francis&HisAllosaurus through patreon/discord
- Phonetic: Doo-bray-low-sore-us
- Megalosaurid theropod that lived within the Jurassic in what’s now Normandy, France (Caen Formation)
- Had distinct traits that included a low, lengthy cranium that was 3 times longer than its top
- Holotype is a subadult
- Fossils discovered embody a lot of the cranium, elements of the decrease jaw, vertebrae, ribs, gastralia, caudals, chevron, a part of the scapula, a claw from the hand, partial thighbone, a part of a shinbone, partial fibula, metatarsal, and extra
- One of the full megalosaurid skulls identified
- Gregory Paul estimated it to be 16 ft (5 m) lengthy and weigh 550 lb (250 kg) however that is based mostly on the subadult so in all probability was larger
- No crest or horns, however potential it grew them because it aged (since solely the subadult has been discovered)
- In all probability had quick, highly effective arms with three fingers on its palms, like its kinfolk
- Kind species: Dubreuillosaurus valesdunensis
- André Dubreuil, mayor of Conteville in Normandy on the time, found dinosaur fossils in an deserted quarry the place the land was being restored. He discovered a partial cranium and a few ribs and let the Nationwide Museum of Pure Historical past in France know. This led to excavations, which didn’t begin till 1998 after the quarry was redeveloped so the fossil materials had been unfold by a bulldozer, they usually needed to dig and sieve the rock
- About 2,000 fragments of bone discovered, between 0.4 to 4 in (1 and 10 cm)
- In 2002, the fossils had been nonetheless being ready
- Dubreuillosaurus was Ronan Allain’s thesis, and on the time in 2002 he named it Poekilopleuron? valesdunensis (a brand new species)
- Had a query mark as a result of the genus naming was tentative
- Poekilopleuron was a megalosauroid that lived across the identical time and place, however the sort species was named in 1836
- In 2005, Ronan Allain discovered it to be a definite genera (a lot of distinct traits, together with the lengthy, low cranium), and renamed it to Dubreuillosaurus, in honor of the Dubreuil household
- Genus title imply’s Dubreuil’s lizard
- Species title valesdunensis refers the place the Battle of Val-ès-Dunes occurred (which was close by), the place William the Conqueror and King Henry I from France fought and gained in opposition to insurgent Norman barons in 1047
- Through the time Dubreuillosaurus lived, Europe was a bunch of islands. Dubreuillosaurus was present in marine sediment and lived on the coast (fossils discovered with in-situ mangrove roots, which implies the water was not too deep), so could have hunted and ate fish (not identified for certain). Partly based mostly on the truth that the holotype of Poekilopleuron bucklandii was discovered with fish fossils
- Discovered on an island, however doesn’t seem like a dwarf dinosaur
- Different animals that lived in the identical time and place embody ammonites, elasmobranchs (group that features sharks, rays, and skates), and different fish
- Drift wooden additionally discovered within the space
- Can see Dubreuillosaurus in Le Paléospace-l’Odyssée museum in Villers-sur-Mer, Normandy, France
Enjoyable Truth:
Some animals have been identified to bury or collect round their useless, together with some birds (trendy dinosaurs). Non-avian dinosaurs could have exhibited comparable conduct, however that proof in all probability wouldn’t fossilize.