Today we examine the amazingly bizarre group of prehistoric arthropods, the Eurypterids or sea scorpions of the Paleozoic. We answer questions like: Where they really scorpions? How large did they get? And what are they exactly? A lot of illustrations used in the video belong to Satoshi Kawasaki, great thank you to him for illustrating many obscure animals Music Credits by Kevin Macleod Sources: -http://www.fossilguy.com/gallery/invert/arthropod/eurypterid/ -https://en.wikipedia.org/wiki/Protichnites -http://www.fossilmall.com/Cambrian_Shadows/Protichnites/prot/protichnites1.htm -http://palaeos.com/metazoa/arthropoda/eurypterida/hibbertopteroidea.html -https://peerj.com/articles/641/ -https://www.jstor.org/stable/1304661?seq=1#fndtn-page_scan_tab_contents -https://www.researchgate.net/publication/7448865_Palaeoecology_A_gigantic_fossil_arthropod_trackway -http://www.nature.com/nature/journal/v438/n7068/full/438576a.html -http://collections.glasgowmuseums.com/viewimage.html?oid=283914&i=400484 -http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1629066/ -https://www.jstor.org/stable/1304661?seq=1#page_scan_tab_contents -http://www.savalli.us/BIO385/Diversity/12.Arthropoda.html -http://www.academia.edu/1194570/Testing_the_mass-moult-mate_hypothesis_of_eurypterid_palaeoecology All copyrighted footage and images in this video are protected under FAIR USE for reasons of Commentary, Education, Criticism, Parody, and Social Satire. Copyright Disclaimer under section 107 of the Copyright Act 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, education and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Educational use tips the balance in favor of fair use. This means, copyrighted images can be displayed, even without the owner’s permission. If I neglected to give the copyright owners credit, please inform m