.png){kind=icon}
Links to interesting videos illustrating some of the organisms and processes related to this chapter, updated on a regular basis.
Jawless Fishes: The Timetree of Life
http://www.timetree.org/public/data/pdf/Kuraku2009Chap40.pdf
Living Fish Without Jaws: Hagfish and Lampreys
https://www.youtube.com/watch?v=4WGcE8wcGQ8
The Hagfish Is the Slimy Sea Creature of Your Nightmares
https://www.youtube.com/watch?v=_8FVpj0p-iU
How a Hagfish Ties Itself Into a Knot
Early Fish and the Origin of Bone, Scales, and Teeth
https://www.youtube.com/watch?v=N3RDM2J3PnY
Origin of Jaws in Fish
https://www.youtube.com/watch?v=8XClIInfpQE
Introduction to the Placodermi
http://www.ucmp.berkeley.edu/vertebrates/basalfish/placodermi.html