Triradiate pelvic girdle

Crocodilian pelvis, showing three-pronged structure
Avian skeleton with pelvic bones highlighted: 1. ilium; 2. pubis; 3. ischium.

The triradiate pelvic girdle is a shared feature common to archosaurs. The pelvis has three prongs, with an elongate pubis and ischium. This feature first appeared in the Erythrosuchidae, large basal archosaurian predators of the early Triassic period.

References


This article is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.