308 Million-Year-Old Arachnid With Spiked Legs Found in Illinois | 7 Days of Science @BenGThomas
308 Million-Year-Old Arachnid With Spiked Legs Found in Illinois | 7 Days of Science  @BenGThomas
Uploaded May 2024 | Updated September 2026, 2 weeks ago
A prehistoric arachnid with incredible spiny legs has been found in Illinois! Also, a new species of Siberian dinosaur has been discovered, the cellular structure of fossilised dinosaur skin has been described, and much more!

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Sources:

Yersinia pestis transmitted through lice as well:
journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3002625
sciencenews.org/article/lice-bites-spread-plague
britannica.com/event/plague-of-Justinian
britannica.com/event/Black-Death

Smaller town than before:
sciencedirect.com/science/article/abs/pii/S0278416524000047?via%3Dihub
sciencenews.org/article/earliest-farming-villages-housed-people

Bella the Beluga whale:
theguardian.com/environment/article/2024/may/20/free-bella-campaigners-fight-to-save-lonely-beluga-whale-from-seoul-mall

New Siberian ceratosaur species Kiyacursor longipes:
royalsocietypublishing.org/doi/10.1098/rspb.2024.0537

New abelisaurid dinosaur Koleken inakayali from Patagonia:
onlinelibrary.wiley.com/doi/10.1111/cla.12583

New species of prehistoric arachnid Douglassarachne:
cambridge.org/core/journals/journal-of-paleontology/article/remarkable-spiny-arachnid-from-the-pennsylvanian-mazon-creek-lagerstatte-illinois/0E1B32BAFCAEA067018EF9BF349F8B81

The origin of bird warm-bloodedness and dinosaur metabolic rates:
cell.com/current-biology/fulltext/S0960-9822(24)00525-6

Cellular structure of dinosaur scales:
nature.com/articles/s41467-024-48400-3

0:00 - Introduction
0:27 - How did the plague spread?
2:13 - Ancient towns were actually smaller than we thought
3:53 - Bella the Beluga Whale
5:30 - New Siberian dinosaur species discovered
7:14 - New abelisaur dinosaur species found
8:30 - New species of prehistoric arachnid with spiked legs
9:53 - Evolution of dinosaur warm-bloodedness
11:12 - Cellular structure of dinosaur scales
12:34 - Outro & Bloopers
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308 Million-Year-Old Arachnid With Spiked Legs Found in Illinois | 7 Days of Science

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