An L-shaped lamina is present on the rear surface of the "apron" of the pubis. The articulation between the two halves of the ischium is characteristically close to the top of the bone, with the separated portion being only 22% the length of the bone; Ornithosuchus may have a similar condition.
On the rear surface of the pubis, an L-shaped lamina is found. The articulation between the two ischium halves is usually close to the top and comprises only 22% of the bone’s length; Ornithosuchus might have a similar condition.