The Evolution of Therizinosaur Dinosaurs

Therizinosaurs are some of the strangest dinosaurs to have ever existed - so strange that for a long time palaeontologists just didn't know what they were or how they evolved.

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Sources:
https://en.wikipedia.org/wiki/Therizinosauria
https://paleoglot.org/files/Maleev%201954.pdf
https://web.archive.org/web/20121128221548/http://paleoglot.org/files/Perle%2079.pdf
https://www.nature.com/articles/20670
http://paleoglot.org/files/Perle%2079.pdf
https://www.app.pan.pl/article/item/app25-187.html
https://paleoglot.org/files/Barsbold_83.pdf
https://www.tandfonline.com/doi/abs/10.1080/02724634.1984.10012026
https://www.nrcresearchpress.com/doi/10.1139/e93-183#.XpcIeMhKiUk
https://web.archive.org/web/20160313031010/http://paleoglot.org/files/barsbold_83.pdf
https://www.nature.com/articles/20670
https://www.tandfonline.com/doi/abs/10.1671/0272-4634%282001%29021%5B0410%3AFDTDTF%5D2.0.CO%3B2
https://www.nature.com/articles/nature03468
https://www.tandfonline.com/doi/abs/10.1080/14772019.2010.488045?journalCode=tjsp20
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3667168/
https://www.amazon.com/Great-Dinosaur-Discoveries-Darren-Naish/dp/0520259750
https://www.tandfonline.com/doi/abs/10.1671/0272-4634%282006%2926%5B636%3ATPGAFO%5D2.0.CO%3B2
https://academic.oup.com/zoolinnean/article/158/1/196/2732015

Видео The Evolution of Therizinosaur Dinosaurs канала Ben G Thomas