The oldest evidence for birds in northern Gondwana? Small tridactyl footprints from the Middle Jurassic of Msemrir (Morocco)

M. Belvedere, G. Dyke, M. Hadri, and S. Ishigaki

2011

Article

Gondwana Research 19:542-549

Find it at:

http://dx.doi.org/10.1016/j.gr.2010.08.004