A New Species of Sail-Backed Dinosaur Has Been Uncovered

Scientists have unearthed a new dinosaur species with a sail along its back, named Istiorachis macarthurae! Also in the news this week: it’s officially been recognised that giraffes are four species, a tiny new moon has been discovered orbiting Uranus, and much more!

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Presented by Ben G Thomas
Written by Ben Thomas
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Sources:
New sail-backed dinosaur species Istiorachis macarthurae found on the Isle of Wight:
https://onlinelibrary.wiley.com/doi/10.1002/spp2.70034

New species of prehistoric turtle Tavachelydra stevensoni from Colorado:
https://link.springer.com/article/10.1186/s13358-025-00375-4
https://www.sci.news/paleontology/tavachelydra-stevensoni-14164.html

Unenlagiids are not dromaeosaurs:
https://www.tandfonline.com/doi/full/10.1080/14772019.2025.2529608

Three new giraffe species have been named:
https://www.giraffids.org/uploads/1/5/0/7/150770488/gosgtaxonomictask_force_iucn_giraffetaxonomyassessment_final.pdf
https://www.science.org/content/article/giraffes-are-four-distinct-species-major-report-confirms

Recovery of a small Australian marsupial:
https://www.sciencedirect.com/science/article/abs/pii/S0006320725004483?via%3Dihub
https://www.nature.com/articles/d41586-025-02586-8

Uranus has a new moon:
https://www.space.com/astronomy/uranus/scientists-find-tiny-new-moon-around-uranus-with-the-james-webb-space-telescope-photos-video
https://www.sci.news/astronomy/webb-new-moon-uranus-14151.html

Chapters:
0:00 - Intro
0:30 - New species of sail-backed dinosaur discovered
3:19 - New species of prehistoric snapping turtle named
4:35 - Unenlagiids are not dromaeosaurs
5:54 - Three new giraffe species have been named
7:25 - A small Australian marsupial is back from the brink of extinction
8:45 - Tiny new moon discovered orbiting Uranus
9:52 - Outro

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