Episode 495: Why Dinosaurs? Plus the primary dinosaur bones from South America. Tony and James be part of to debate the standing of their dinosaur documentary. Tietasaura was named from the oldest dinosaur fossils collected in South America. A brand new Archaeopteryx. Plus a breakdown of the main sauropod teams.
Information:
- There’s a brand new elasmarian ornithopod, Tietasaura derbyiana supply
- The Subject Museum in Chicago has a brand new to science Archaeopteryx on show supply
- The Nationwide Museum of Brazil acquired a donation of over 1,100 fossils that had been all present in Brazil supply
Listener suggestions:
- An fascinating Triassic sauropodomorph named Pampadromaeus
- A breakdown of the main sauropod teams and what makes them distinctive
Interview:
Tony and James Pinto are the daddy and son staff behind the function size documentary Why Dinosaurs? Which we’ve got been following for years. Tony is the filmmaker and the director and James not too long ago graduated from UC Berkeley with a level in Integrative Biology & Geology. Comply with them on Instagram @WhyDinosaurs
Sponsors:
You may dig up actual dinosaur bones this summer season with Colorado Northwestern Neighborhood Faculty! Be part of them for a two week immersive area paleontology expertise digging up dinosaur bones from the Jurassic interval in Northwest Colorado. There are two scheduled digs: July 6–July 20 and July 22–August 5. There are additionally two concurrent immersive lab strategies applications obtainable. Get all the main points and register on-line at cncc.edu/dinodig
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The dinosaur of the day: Bradycneme
- Theropod dinosaur that lived within the Late Cretaceous in what’s now Transylvania, Romania (Ha?eg Basin)
- Named from a partial decrease proper leg
- Sort and solely species is Bradycneme draculae
- Named in 1975 by C.J.O. Harrison and C.A. Walker
- They named two: Bradycneme and Heptasteornis
- Thought Bradycneme was a big owl (when named Bradycneme)
- Fossil discovered by Girl Smith-Woodward in 1923
- Fossil in pretty good situation, however small areas had been crushed
- Holotype is nearly 4 cm (about 1.5 in) huge
- If it had been an owl, would have been stout, and about 6.6 ft (2 m) tall
- Initially Bradycneme and Heptasteornis had been assigned to the chook Elopteryx nopcsai (is perhaps a troodontid)
- Elopteryx named in 1913, primarily based on half a femur (thighbone), after which referred different bones to it, together with the bone now assigned to Bradycneme
- Through the years, has been cut up and synonymized with Heptasteornis and Elopteryx
- All primarily based on fragmentary fossils (all elements of the leg)
- The Catalogue of Fossil Birds in 1978 wrote: “The holotype had been doubtfully referred to Elopteryx nopcsai by Andrews (1913) nevertheless it virtually actually represents a theropod dinosaur”
- When regarded as Elopteryx, regarded as a pelecaniform chook (medium to giant aquatic birds)
- For some time, regarded as one of many oldest owls recognized
- Described as a big owl “a lot bigger than any described species”
- At occasions, has been regarded as a troodontid
- Ankle bones much like tetanurans (which incorporates tyrannosaurs, ornithomimosaurs, and birds, to call just a few)
- Additionally had some options much like troodontids, with sure grooves and shapes
- One research recommended it was much like Deinonychus, however later research couldn’t discover the similarities
- In 1998 Zoltan Csiki-Save and Dan Grigorescu stated “Bradycneme” was a casual title, in quotes, partly as a result of it is analogous with troodontids however had a personality that made it not look like a coelurosaur, the clade that features all theropods extra intently associated to birds (stated extra fossils had been wanted, and located variations between Bradycneme and Elopteryx)
- Newest is Bradycneme thought-about to be an alvarezsaurid
- As an alvarezsaurid, in all probability walked on two legs, had very quick arms (so quick you’d solely discover its finger or fingers), a protracted tail, a brief neck, a protracted face with a beak, and perhaps had feathers
- Genus title means “huge leg” or “heavy leg”
- Species title draculae comes from the Romanian phrase dracul, which implies evil one (refers to Dracula)
- Lived on an island, with a number of rivers and lakes
- Different animals that lived across the similar time and place embrace amphibians, turtles, crocodyliforms, lizards, mammals, and pterosaurs
- Different dinosaurs that lived across the similar time and place embrace the armored nodosaur Struthiosaurus, the small sauropod Magyarosaurus, and theropods together with Elopteryx and Heptasteornis
- Can be taught extra particulars in episode 400, our milestone episode all concerning the dwarf dinosaurs of Hateg Island
Enjoyable Reality:
The truth that dinosaurs have feathers is nice proof that they had been heat blooded.
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