Baur, G. 1887 Ueber die Abstammung der amnioten Wirbeltiere. Biol. Zbl. 7, 481493.
Baur, G. 1889 Mr E. T. Newton on Pterosauria. Geol. Mag. (3)6, 171174.
Baur, G. 1891 The pelvis of the Testudinata with notes on the evolution of the pelvis in general. J. Morph. 4, 345359.