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 foremost sauropod teams.
Information:
- There’s a brand new elasmarian ornithopod, Tietasaura derbyiana supply
- The Area Museum in Chicago has a brand new to science Archaeopteryx on show supply
- The Nationwide Museum of Brazil received a donation of over 1,100 fossils that have been all present in Brazil supply
Listener suggestions:
- An fascinating Triassic sauropodomorph named Pampadromaeus
- A breakdown of the foremost 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 have now been following for years. Tony is the filmmaker and the director and James lately graduated from UC Berkeley with a level in Integrative Biology & Geology. Comply with them on Instagram @WhyDinosaurs
Sponsors:
You’ll be able to dig up actual dinosaur bones this summer season with Colorado Northwestern Neighborhood Faculty! Be part of them for a two week immersive discipline 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 methods packages accessible. 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
- Kind 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 Woman Smith-Woodward in 1923
- Fossil in pretty good situation, however small areas have been crushed
- Holotype is nearly 4 cm (about 1.5 in) broad
- If it have been an owl, would have been stout, and about 6.6 ft (2 m) tall
- Initially Bradycneme and Heptasteornis have been assigned to the fowl Elopteryx nopcsai (may be 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 components of the leg)
- The Catalogue of Fossil Birds in 1978 wrote: “The holotype had been doubtfully referred to Elopteryx nopcsai by Andrews (1913) however it virtually actually represents a theropod dinosaur”
- When considered Elopteryx, considered a pelecaniform fowl (medium to massive aquatic birds)
- For some time, considered one of many oldest owls recognized
- Described as a big owl “a lot bigger than any described species”
- At instances, has been considered 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 examine steered 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 identify, in quotes, partly as a result of it is similar with troodontids however had a personality that made it not look like a coelurosaur, the clade that features all theropods extra carefully associated to birds (stated extra fossils have been wanted, and located variations between Bradycneme and Elopteryx)
- Newest is Bradycneme thought-about to be an alvarezsaurid
- As an alvarezsaurid, most likely walked on two legs, had very quick arms (so quick you’d solely discover its finger or fingers), an extended tail, a brief neck, an extended face with a beak, and perhaps had feathers
- Genus identify means “large leg” or “heavy leg”
- Species identify draculae comes from the Romanian phrase dracul, which suggests evil one (refers to Dracula)
- Lived on an island, with numerous rivers and lakes
- Different animals that lived across the similar time and place embody amphibians, turtles, crocodyliforms, lizards, mammals, and pterosaurs
- Different dinosaurs that lived across the similar time and place embody the armored nodosaur Struthiosaurus, the small sauropod Magyarosaurus, and theropods together with Elopteryx and Heptasteornis
- Can study extra particulars in episode 400, our milestone episode all concerning the dwarf dinosaurs of Hateg Island
Enjoyable Truth:
The truth that dinosaurs have feathers is sweet proof that they have been heat blooded.
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