Episode 368 is all about Hypselospinus, a relative of Iguanodon which has also gone by the names Darwinsaurus and Wadhurstia.
Big thanks to all our patrons! Your support means so much to us and keeps us going! If you’re a dinosaur enthusiast, join our growing community on Patreon at https://www.patreon.com/iknowdino.
You can listen to our free podcast, with all our episodes, on Apple Podcasts at: https://itunes.apple.com/us/podcast/i-know-dino/id960976813?mt=2
In this episode, we discuss:
- We discuss the Non-Avian Theropod Systematics and the Paleopathology & Paleohistology sessions from the Society of Vertebrate Paleontology annual meeting source
- A company is planning to sell NFTs with the goal of buying a T. rex fossil source
- Jardin des Plantes in Paris, France has illuminated dinosaurs on display source
The dinosaur of the day: Hypselospinus
- Iguanodontian that lived in the Cretaceous in what is now East Sussex, England (possibly also from Spain)
- First described as a species of Iguanodon, by Richard Lydekker in 1889
- Looks similar to Iguanodon, quadrupedal with a bulky body and long tail
- Type species is Hypselospinus fittoni
- Genus name means “high thorn”, and refers to its high vertebral spines
- Species name is in honor of William Henry Fitton
- Lightly built
- Estimated to be 19.7 ft (6 m) long
- Had “long, narrow, and steeply inclined neural spines”
- Had a rectangular shaped skull and broad snout (for cropping plants)
- Fossils found near Rye in 1866
- David Norman reclassified Hypselospinus as its own genus in 2010
- Holotype includes left ilium, sacrum, tail vertebrae, and teeth
- Vertebrae had some unique features (sub-cylindrical centra and prominent posterior chevron facets)
- Later in 2010, Carpenter and Ishida reclassified Iguanodon fittoni to a new genus Wadhurstia. Because Hypselospinus was named first, Wadhurstia became a junior objective synonym
- In 2012, Gregory Paul named Darwinsaurus evolutionis based on a partial skeleton (fossils that used to be classified as Iguanodon fittoni, that Richard Owen described in 1842), but not everyone agrees with this
- Darwinsaurus means “Darwin’s lizard”
- In 2015, Bexhill Museum in the UK had a Hypselospinus skeleton on display
- Based on more fossils found in the area, including a well preserved tail bone
- Skeleton had most of the bones, including the arms and legs, but was missing the thumb spike
- A specimen in the Natural History Museum of London has been found with a partial right forearm and thumb spike, around 3 in (8 cm) long
Fun Fact: The deepest dive by a dinosaur is five times as deep as the world record for a human. The deepest dive for a flying bird is over twice as deep as the world record human.
This episode is brought to you by our patrons. Their generous contributions make our podcast possible! We just released a sample chapter of an upcoming book for all of our patrons at the Tyrannosaurus level and up. Head to Patreon.com/iknowdino to get access and help us keep making the show.
Tell us what you think about our show in our 2021 Year End Survey! We want our show to be as enjoyable as possible, and your input will help us improve. Head to bit.ly/ikdsurvey21 to leave us your feedback.
Share your thoughts