However, Arbour & Currie (2015) questioned whether or not the sternum was preserved. The bone, tentatively identified as the left sternum, was found adjacent to various other elements and its boundaries remain unclear. The sternum could have possibly been displaced post-mortem, resulting in the anteriorly pointing posterolateral process.
Arbour & Currie's (2015) investigation into the sternum's preservation raises uncertainty about its status. Initially believed to be the left breastbone, it was discovered adjacent to other skeletal components and its edges remain indistinct.