ull . ▁Also ▁they ▁feature ▁a ▁Gast orn is . ▁As ▁sau rop ods ▁they ▁have ▁a ▁Cam ar as aur us ▁ske leton ▁and ▁an ▁A pat osa urus ▁fem ur . ▁As ▁cer at op si ans ▁they ▁have ▁a ▁Ps itt ac osa urus ▁ske leton , ▁a ▁Z unic er at ops , ▁Pro to cer at ops , ▁Pent ac er at ops ▁and ▁Tr ic er at ops ▁and ▁as ▁ igu an od ont s ▁they ▁consist ▁sole ly ▁on ▁a ▁Pro b act ros aur us . ▁ ▁Ar che ology / An th rop ology ▁The ▁Anth rop ology ▁Section ▁of ▁the ▁Arizona ▁Museum ▁of ▁Natural ▁History ▁conduct s ▁research ▁and ▁develop s ▁exhib itions ▁on ▁Native ▁American ▁cult ures ▁and ▁the ▁arch ae ology ▁of ▁southern ▁Arizona . ▁Arch ae ology ▁has ▁been ▁a ▁major ▁focus ▁of ▁the ▁museum ▁since ▁its ▁in ception ▁in ▁ 1 9 7 7 . ▁The ▁museum ▁spons ors ▁on going ▁exc av ation ▁at ▁the ▁M esa ▁Grande ▁Ru in , ▁a ▁large ▁m ound ▁in ▁M esa ▁d ating ▁from ▁the ▁H oh ok am ▁Classic ▁Period . ▁This ▁is ▁one ▁of ▁the ▁most ▁important ▁tasks ▁of ▁the ▁anth rop ology ▁department . ▁The ▁opening ▁of ▁M esa ▁Grande ▁as ▁a ▁her itage ▁site ▁dedicated ▁to ▁public ▁education ▁concerning ▁the ▁H oh ok am ▁and ▁O ' od ham ▁people ▁remains ▁a ▁central ▁goal ▁of ▁the ▁museum . ▁ ▁</ ref > ▁a ri zon am