Episode 502: A brand new raptor discovered with doubtlessly cannibalistic chunk marks. Plus our first ever Di-Know-It-All puzzle, a brand new method on the semi-aquatic Spinosaurus mannequin, what whales and dinosaurs have in frequent, and extra
Information:
- There’s a brand new unenlagiine dromaeosaur, Diuqin lechiguanae, that was bitten laborious sufficient to depart 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 (identical because the previous nickname) supply
Dinosaur Connection Problem: Cetaceans (whales, dolphins, and porpoises) supply
Di-Know-It-All Problem:
You possibly can win a big Spinosaurus tooth, fossilized leaf, and extra by successful our Di-Know-It-All Problem! Every week from episode 502 to 509 we’ll learn a puzzle on the present which you’ll enter to win by answering questions. This week you may enter at bit.ly/dinochallenge502 and if you happen to’re a patron you may reply the patron query at patreon.com/posts/107569799. All the foundations for the problem are at bit.ly/dinochallenge24
The dinosaur of the day: Brodavis
- Hesperornithiform chook that lived within the Late Cretaceous in what’s now North America and Asia
- Regarded like a loon chook (water birds that solely go on land to mate and for his or her eggs—they dive within the water to catch small fish and pursue their prey. They will fly, however they want a runway for takeoff, they usually run throughout the highest of water to get pace to elevate off)
- Thought of to be a medium-sized chook
- A bit smaller than a loon, and had enamel
- Frequent loons are about 71 to 81 cm (28 to 32 in) lengthy and might 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
- Doable Brodavis might fly
- Had flippantly constructed bones (lack of pachyostosis, which is when the bones thicken to make them extra dense)
- First recognized freshwater Hesperornithiform
- Hunted in contemporary water
- Swam in rivers and lived inland, in freshwater environments
- Hesperornithes had been aquatic and intently associated to the ancestors of contemporary birds
- Lived in salt and freshwater habitats within the Northern Hemisphere
- They had been good swimmers and divers
- Had lengthy snouts with barely hooked beaks, and had sharp enamel
- Hesperornithiforms usually couldn’t fly
- Hesperornithiformes usually have pachyostotic bones, which assist them dive
- A 2016 research examined a proper femur (thigh bone) assigned to Brodavis sp. (unknown species)
- Discovered the bone to be thicker, which can imply Brodavis did ultimately lose the power to fly, like Hesperornis
- Kind species is Brodavis americanus
- Described in 2012 by Larry Martin, Evgeny Kurochkin, and Tim Tokaryk
- Additionally named the household Brodavidae
- Brodavidae are foot-propelled diving birds
- Brodavidae could also be an early clade of hesperornithiforms that dove in freshwaters and should have been in a position to fly
- Clade lived till the tip of the Cretaceous
- Described 4 species: americanus, baileyi, mongoliensis, and varneri
- Fossils discovered within the Nineteen Eighties
- Kind species is Brodavis americanus, based mostly on a part of a left foot present in Canada (Frenchman Formation)
- Genus title Brodavis is from Brodkorb, “in reminiscence of the late Professor Pierce Brodkorb who did a lot to additional the research of fossil birds”
- And “avis” means chook in Latin
- Species title americanus refers to the place the species was recognized to stay
- Brodavis baileyi is known as additionally based mostly on a part of a left foot, present in South Dakota, U.S. (Hell Creek Formation)
- Species title 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 title mongoliensis refers to the place the species was recognized to stay
- Brodavis mongoliensis foot bone appears extra slender, thinner, and longer
- Brodavis varneri was named based mostly on a part of a left foot present in South Dakota (Sharon Springs Formation)
- When first described, mentioned Brodavis varneri was much less seemingly
- Initially was named as a second species of Baptornis in 2007, by James Martin and Amanda Crodes-Individual
- Within the paper naming Brodavis, the authors mentioned “Brodavis varneri ought to in all probability have its personal generic designation, however we now have chosen to not erect a brand new genus for it in hopes that further materials will make the relationships between the assorted types extra clear”
- The 2016 paper affirmed Baptornis varneri to be Brodavis varneri
Enjoyable Reality:
There may be a large raptor (dromaeosaur) that lived in what’s now Uzbekistan
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