Table 2 in Osteology of the two-fingered oviraptorid Oksoko avarsan (Theropoda: Oviraptorosauria)

Table 2. External indicators of skeletal maturity in Oksoko avarsan. Early juvenile (MPC-D 102/11)Late juvenile (MPC-D 102/110)Subadult (MPC-D 100/33)Adult (MPC-D 102/12)Approximate percentage of adult body mass45%60%-100%Nasals fusedX Posterior cleft✓✓✓Frontals fusedX Posterior cleft✓✓✓Parietals fusedX Anterior cleft✓✓✓Braincase fusedX✓✓✓Cervical neural arches fusedXXX✓Dorsal neural arches fusedXXX✓Number of Sacral centra fused334-Number of distal Caudal neural arches fused15-21+25+ Notes: X,absent;✓,present; -, information unavailable.