Episode 502: A brand new raptor discovered with doubtlessly cannibalistic chew marks. Plus our first ever Di-Know-It-All puzzle, a brand new means at the semi-aquatic Spinosaurus style, what whales and dinosaurs have in commonplace, and extra
Information:
- There’s a brand new unenlagiine dromaeosaur, Diuqin lechiguanae, that was once bitten exhausting sufficient to go away punctures on its higher arm bone supply
- Scientists studied cranium shapes of 99 animals to determine how a lot time Spinosaurus spent within the water supply
- The sauropod on the NHM formally has a brand new nickname (similar because the outdated nickname) supply
Dinosaur Connection Problem: Cetaceans (whales, dolphins, and porpoises) supply
Di-Know-It-All Problem:
You’ll be able to win a big Spinosaurus teeth, fossilized leaf, and extra by way of profitable our Di-Know-It-All Problem! Each and every week from episode 502 to 509 we’ll learn a puzzle at the display which you’ll be able to input to win by way of answering questions. This week you’ll be able to input at bit.ly/dinochallenge502 and for those who’re a patron you’ll be able to solution the shopper query at patreon.com/posts/107569799. All of the regulations for the problem are at bit.ly/dinochallenge24
The dinosaur of the day: Brodavis
- Hesperornithiform chicken that lived within the Past due Cretaceous in what’s now North The us and Asia
- Appeared like a loon chicken (water birds that simplest move on land to mate and for his or her eggs—they dive within the water to catch small fish and pursue their prey. They are able to fly, however they want a runway for takeoff, and so they run around the most sensible of water to get pace to raise off)
- Thought to be to be a medium-sized chicken
- A little bit smaller than a loon, and had tooth
- Commonplace loons are about 71 to 81 cm (28 to 32 in) lengthy and will weigh between 4 and 5.5 kg (9 and 12 lb)
- Brodavis had feathers and a beak, walked on two legs, had a brief tail
- Imaginable Brodavis may just fly
- Had evenly constructed bones (loss of pachyostosis, which is when the bones thicken to lead them to extra dense)
- First identified freshwater Hesperornithiform
- Hunted in recent water
- Swam in rivers and lived inland, in freshwater environments
- Hesperornithes had been aquatic and carefully associated with the ancestors of recent birds
- Lived in salt and freshwater habitats within the Northern Hemisphere
- They had been just right swimmers and divers
- Had lengthy snouts with somewhat hooked beaks, and had sharp tooth
- Hesperornithiforms in most cases couldn’t fly
- Hesperornithiformes in most cases have pachyostotic bones, which lend a hand them dive
- A 2016 find out about tested a proper femur (thigh bone) assigned to Brodavis sp. (unknown species)
- Discovered the bone to be thicker, which would possibly imply Brodavis did sooner or later lose the facility to fly, like Hesperornis
- Kind species is Brodavis americanus
- Described in 2012 by way of Larry Martin, Evgeny Kurochkin, and Tim Tokaryk
- Additionally named the circle of relatives Brodavidae
- Brodavidae are foot-propelled diving birds
- Brodavidae is also an early clade of hesperornithiforms that dove in freshwaters and could have been in a position to fly
- Clade lived till the top of the Cretaceous
- Described 4 species: americanus, baileyi, mongoliensis, and varneri
- Fossils discovered within the Eighties
- Kind species is Brodavis americanus, in keeping with a part of a left foot present in Canada (Frenchman Formation)
- Genus identify Brodavis is from Brodkorb, “in reminiscence of the past due Professor Pierce Brodkorb who did such a lot to additional the find out about of fossil birds”
- And “avis” method chicken in Latin
- Species identify americanus refers to the place the species was once identified to are living
- Brodavis baileyi is known as additionally in keeping with a part of a left foot, present in South Dakota, U.S. (Hell Creek Formation)
- Species identify baileyi is in honor of Bruce Bailey who discovered the holotype
- Brodavis mongoliensis is known as from a part of a left foot, present in Mongolia (Nemegt Formation)
- Species identify mongoliensis refers to the place the species was once identified to are living
- Brodavis mongoliensis foot bone turns out extra narrow, thinner, and longer
- Brodavis varneri was once named in keeping with a part of a left foot present in South Dakota (Sharon Springs Formation)
- When first described, mentioned Brodavis varneri was once much less most likely
- In the beginning was once named as a 2d species of Baptornis in 2007, by way of James Martin and Amanda Crodes-Particular person
- Within the paper naming Brodavis, the authors mentioned “Brodavis varneri must most probably have its personal generic designation, however we now have selected to not erect a brand new genus for it in hopes that further subject matter will make the relationships between the quite a lot of paperwork extra transparent”
- The 2016 paper affirmed Baptornis varneri to be Brodavis varneri
A laugh Reality:
There could be a large raptor (dromaeosaur) that lived in what’s now Uzbekistan
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