Uploaded August 2023 | Updated September 2026, 2 weeks ago

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Throughout the history of life, convergent evolution has resulted in all sorts of creatures evolving to look very similar to one another. One of the most interesting examples is the case of the repeatedly evolving turtles - the Placodonts, the Saurosphargids, the Glyptodonts, and even the Ankylosaurs.

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Sources:
academic.oup.com/zoolinnean/article/120/3/281/2684352
link.springer.com/article/10.1007/s001140100228
nature.com/articles/nature14472
nature.com/articles/s41586-018-0419-1
royalsocietypublishing.org/doi/10.1098/rsbl.2010.0371
nature.com/articles/s41598-019-46762-z
nature.com/articles/nature07533
science.org/doi/10.1126/science.261.5129.1716
doi.org/10.3389/fevo.2023.1175128
tandfonline.com/doi/abs/10.1080/02724634.1983.10011953
researchgate.net/publication/257701430_Proganochelys_ruchae_n_sp_Chelonien_du_Trias_superieur_de_Thailande
sjpp.springeropen.com/articles/10.1186/s13358-022-00260-4
tandfonline.com/doi/abs/10.1080/02724634.2016.1223685?journalCode=ujvp20
amazon.com/Ancient-Sea-Reptiles-Plesiosaurs-ichthyosaurs/dp/056509534X
tandfonline.com/doi/full/10.1080/02724634.2011.550368
nature.com/articles/s41598-017-04514-x
link.springer.com/article/10.1007/s12583-012-0231-z
cambridge.org/core/journals/geological-magazine/article/abs/new-species-of-largocephalosaurus-diapsida-saurosphargidae-with-implications-for-the-morphological-diversity-and-phylogeny-of-the-group/02DC9563ADF2E5C2E6EB11285E6D29EA
elifesciences.org/articles/83163
nature.com/articles/ncomms2633
academic.oup.com/zoolinnean/article/185/3/910/5236993
onlinelibrary.wiley.com/doi/10.1111/joa.12162
onlinelibrary.wiley.com/doi/10.1111/j.1365-2451.2004.00470.x
tandfonline.com/doi/abs/10.1080/14772019.2018.1535455?journalCode=tjsp20
archive.org/details/cranialanatomyof45riep
archive.org/details/dermalarmorofcya46riep
bmcecolevol.biomedcentral.com/articles/10.1186/s12862-021-01835-4
cell.com/current-biology/fulltext/S0960-9822(16)00121-4?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982216001214%3Fshowall%3Dtrue
link.springer.com/article/10.1007/BF02988404
amazon.com/Princeton-Field-Prehistoric-Mammals-Guides/dp/0691156824
link.springer.com/chapter/10.1007/978-3-319-98449-0_6
royalsocietypublishing.org/doi/10.1098/rspb.2009.1144
amazon.com/Dinosaurs-Concise-Natural-David-Fastovsky/dp/1108469299/ref=pd_lpo_sccl_1/262-3498201-7548924?pd_rd_w=vaxH9&content-id=amzn1.sym.efc89c20-c5a9-4620-b6cd-2f4e51bac956&pf_rd_p=efc89c20-c5a9-4620-b6cd-2f4e51bac956&pf_rd_r=Q5WQHGM9JZJNC8G6Q4S3&pd_rd_wg=xI0DT&pd_rd_r=22f586ec-5678-424f-9441-2712564118f2&pd_rd_i=1108469299&psc=1
onlinelibrary.wiley.com/doi/10.1002/jmor.20194
https://d.wanfangdata.com.cn/periodical/ChhQZXJpb2RpY2FsQ0hJTmV3MjAyMzA4MDYSDWpzZHoyMDE2MDIwMDEaCG9qajI0c2dw

0:00 - Introduction
1:03 - Turtle Evolution
9:10 - The Saurosphargids
15:30 - The Placodonts
21:41 - The Glyptodonts
23:59 - The Ankylosaurs