Episode 506: Stegosaurus is the Most Precious Dinosaur. A Stegosaurus simply offered for over $44 million; A model new burrowing dinosaur was present in a bunch; And a brand new iguanodontian which is probably the most full dino present in Britain in 100 years.
Information:
- A Stegosaurus nicknamed Apex simply offered at public sale for $44.6 million, making it probably the most helpful dinosaur skeleton ever offered supply
- There’s a brand new dinosaur, Fona herzogae, that appears to have been buried in a bunch in its burrow supply
- There’s a brand new iguanodontian dinosaur, Comptonatus chasei, which is probably the most full dinosaur present in Britain in 100 years supply
- The Museum of Evolution in Denmark has a brand new Camarasaurus so as to add to its assortment of dinosaurs from Wyoming supply
Sponsors:
This episode is dropped at you by Good, the app with 1000’s of bite-sized, interactive classes on cutting-edge subjects. Anybody concerned with paleontology will notably like their programs in chemistry, which underlie the fossilization course of, in addition to knowledge evaluation, used to mannequin dinosaur populations. Begin your 30-day free trial at the moment! Plus, I Know Dino subscribers can get an additional 20% off a premium annual subscription right here.
This episode is dropped at you by BetterHelp. Give on-line remedy a strive at betterhelp.com/IKD
Di-Know-It-All Problem:
You possibly can win a big Spinosaurus tooth, fossilized leaf, and extra by profitable 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 possibly can enter at bit.ly/dinochallenge506 and if you happen to’re a patron you possibly can reply the patron query at patreon.com/posts/109303607. All the principles for the problem are at bit.ly/dinochallenge24
The dinosaur of the day: Jubbulpuria
- Noasaurid theropod that lived within the Late Cretaceous in what’s now Madhya Pradesh, India (Lameta Formation)
- Noasaurids are carefully associated to abelisaurids (which have brief arms) however they’d our bodies extra like different theropods, although there are variations within the heads relying on the subfamilies (some don’t have any enamel, some have loopy enamel)
- Small carnivore, across the identical measurement as Masiakasaurus, which is estimated to be about 2 m (6.6 ft) lengthy
- Walked on two legs, had brief arms, lengthy tail
- Primarily based on paleoart, had an extended head and sharp enamel
- (Not many bones discovered, just some vertebrae)
- Jubbulpuria is now a junior synonym of one other dinosaur, Laevisuchus
- How did that occur?
- First, some fast historical past
- First reported dinosaur bones from India was in 1828, when British Military Captain W. H. Sleeman discovered tail bones with ball-and-socket joints, from the Late Cretaceous in what’s now Jabalpur (then “Jubbulpore”)
- Occurred earlier than Dinosauria was named
- However later the bones had been named Titanosaurus indicus
- Solely dinosaur bones till Matley and Bhattacharji got here alongside
- Fossils had been excavated in 1917 to 1919 by Charles Matley and Durgansanka Bhattacharji (Laevisuchus and Jubbulpuria)
- Since then, extra dinosaurs discovered (28 named species from India to date)
- Sort species of Jubbulpuria was Jubbulpuria tenuis
- Genus title Jubbulpuria refers to the place the fossils the place discovered
- Species title tenius refers to its effective or slender bones (skinny bones)
- Named by Huene and Matley in 1933 primarily based on two small vertebrae from the again space (dorsal area)
- Later research discovered the 2 bones got here from the tail as an alternative
- Numerous components of predatory dinosaurs discovered within the Lameta Formation, in what was often called the “Carnosaur mattress”
- Huene and Matley described 9 species from 8 genera in 1933, primarily based on 32 packing containers of fabric
- Additionally described many leg bones that they couldn’t discuss with any species however stated had been allosaurid or coelurosaurid theropods
- All discovered from one space, the “Carnosaur mattress”
- Bones had been “heaped collectively on this small house, with little regard to their unique relationship” (based on Huene and Matley), all in an space about 20 sq. yards
- Stated they’d notes on the place the bones had been positioned within the Carnosaur mattress, however the notes haven’t been discovered
- Norman in 1990 discovered Jubbulpuria to be nomen dubium, and 2004 evaluate by Fernando Novas and others agreed
- That 2004 evaluate discovered that Laevisuchus indicus was a small abelisaurid, associated to Noasaurus and Masiakasaurus primarily based on the neck bones, and Jubbulpuria (controversial taxa) was recognized from remoted vertebrae from the tail and likewise an abelisauroid
- Discovered all of the theropods from that Carnosaur mattress to be abelisauroids
- In 2011 Carrano and others instructed that Compsosuchus, Jubbulpuria, and Laevisuchus could all be the identical
- Sort species is Laevisuchus indicus
- Described by Friedrich von Huene and Charles Matley in 1933
- Genus title Laevisuchus means “gentle crocodile”
- Genus title is for the traditional Egyptian crocodile god, Soukhos
- Species title means “Indian” (present in India)
- Laeviscuchus described in 1933 by Huene and Matley
- Primarily based on three cervicals (neck bones)
- However two of the bones went lacking (as of 2004)
- In 2012, one of many neck bones was re-found in three separate items in unmarked packing containers, together with different fragments on the Invertebrate Gallery of the Indian Museum
- Then one other neck bone was rediscovered in 2012/2013
- A part of one other lacking vertebrae additionally present in 2013 (items of each vertebrae lacking, and one neck bone nonetheless lacking)
- A 2024 evaluate of small theropods from the Late Cretaceous of India, by Dhananjay Mohabey and others, studied the three recognized neck bones and again bone for Laevisuchus, in addition to the 2 tails bones for Jubbulpuria (in addition to different small theropods)
- Small theropods thought of to be below 5 m lengthy (below about 16 ft)
- Discovered the neck bones of Laevisuchus had been most like Masiakasaurus (not as a lot Noasaurus)
- Additionally described a brand new partial jawbone just lately collected from the Lameta Formation
- Most likely belongs to a noasaurid, probably Laevisuchus
- New dentary described has options in frequent with Masiakasaurus, so appears to belong to a noasaurid
- Designated a lectotype for Laevisuchus (an almost full neck vertebra)
- When first described, no sort specimen of Laevisuchus
- One neck vertebra was the de facto sort specimen, as a result of it was the one one actually described and for a very long time the one one discovered within the Geological Survey of India collections
- Additionally referred different vertebrae
- Named one of many neck bones because the lectotype as a result of it was probably the most full and finest preserved
- And stated the 2 tail vertebrae of Jubbulpuria is probably going Laevisuchus
- Laborious to match the options however they’re all delicate and have skinny partitions, the dimensions is constant to belonging to the identical particular person, primarily based on evaluating to a Masiakasaurus specimen, and authors stated primarily based on no duplication, wanting equally, being the precise measurement, and all present in the identical restricted space means it possible belongs to the identical species
- The title Laevisuchus appeared first, so preserving that title and Jubbulpuria turns into a junior synonym
- Lived in an space with a number of vegetation, and was a tropical lagoon
- Different dinosaurs that lived across the identical time and place embrace the titanosaur Jainosaurus, the abelisaurs Indosaurus and Indosuchus (and plenty of different theropods)
- Different animals that lived across the identical time and place embrace snakes, crocodylomorphs, turtles, mammals, and mollusks
Enjoyable Reality:
A brand new research discovered that within the Jurassic, early mammals had longer lifespans and took longer to develop
Thanks Patrons!
Your help means a lot to us and retains us going! In case you’re a dinosaur fanatic, be part of our rising group on Patreon at patreon.com/iknowdino
