JEB -- Dunbar et al. 211 (24): 3889 Figure IG2

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 2. Measured axes and angles in the pitch plane. (A) head axis (black) was a line passing through the ear and the lower lip, neck axis (red) was a line passing through the withers (3rd thoracic vertebra) and the ear, and trunk axis (blue) was a line passing through the dock (tail base) and the withers. (B) Head angle ( ${theta}$ ) and trunk angle (β) relative to space, and head angle relative to the trunk ( ${alpha}$ ). (C) Neck angle relative to space ( ${delta}$ ), head angle relative to the neck (µ) and neck angle relative to the trunk ( ${epsilon}$ ). Horizontal broken lines indicate the earth-horizontal space reference.