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When Birds Had Teeth

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 Archeology / Paleontology   |   Biology   |   Science
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Check out ReInventors: https://www.youtube.com/channel/UCzZRoStdiqWxauQT2RGW1Lg

Experts are still arguing over whether Archaeopteryx was a true bird, or a paravian dinosaur, or some other kind of dino. But regardless of what side you’re on, how did this fascinating, bird-like animal relate to today’s birds? It turns out its teeth were a clue that this story goes all the way back to what we now call the non-avian dinosaurs.

Thanks to Ceri Thomas for the excellent Longipteryx reconstruction. Check out more of Ceri's paleoart at http://alphynix.tumblr.com and http://nixillustration.com

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Super special thanks to the following Patreon patrons for helping make Eons possible:
Katie Fichtner, Aldo Espinosa Zúñiga, Kelby Reid, Steph Summerfield, Todd Dittman, Betsy Radley, Svetlana Pylaeva, Colin Sylvester, Philip Slingerland, John Vanek, Jose Garcia, Noah offitzer, Eric Vonk, Tony Wamsley, Henrik Peteri, Jonathan Wright, Wilco Verweij, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Elysha Nygård, Jeff Graham, Maria Humphrey, Nathan Paskett, Connor Jensen, Ehit Dinesh Agarwal, Sapjes, Daisuke Goto, Zachary Winkler, Hubert Rady, Yuntao Zhou, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao, Tsee Lee, Sarah Fritts, Ruben Winter, Ron Harvey Jr, Joshua Mitchell, Johnny Li, Jacob Gerke, Katie M Vasilescu, Brandon Burke, Alex Yan

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References:
doi:10.2475/ajs.s3-14.83.337
https://digitallibrary.amnh.org/bitstream/handle/2246/3223/?sequence=1
Bakker RT. 1986. The Dinosaur Heresies. Zebra Books, New York. 481 pp. ISBN: 0806522607
https://paleoglot.org/files/Ji&Ji_96.pdf
doi:10.1038/scientificamericandinosaurs0514-76
Martyniuk, MP. 2012. A Field Guide to Mesozoic Birds and Other Winged DInosaurs. Pan Aves, Vernon, NJ. 191 pp.
ISBN-13: 978-0-9885965-0-4
Baby enantiornithine: https://doi.org/10.1016/j.gr.2017.06.001
Enantiornithine wings: https://www.nature.com/articles/ncomms12089
Baby dinosaur tail: https://doi.org/10.1016/j.cub.2016.10.008
https://doi.org/10.1002/jgrg.20018
https://doi.org/10.1029/2001JE001532
https://doi.org/10.1130/B25402.1
https://www.cell.com/current-biology/fulltext/S0960-9822(16)30249-4
https://www.cell.com/current-biology/fulltext/S0960-9822(18)30534-7
https://www.sciencedirect.com/science/article/pii/S0169534711002643#fig0020

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