萨奇卡龙头骨完全缝合,未缝合的是椎骨和神经棘。we interpret MP111209-1 as a sub-adult individual. As an adult, the specimen presents a well-ossied sutured skull, fully formed teeth exhibiting noticeable ridges on their enameled crowns, and capitulum and tuberosity or trochanter differentiated on propodials.