▁in ▁some ▁areas ▁of ▁B aja ▁California ▁Sur . ▁He ▁reported ▁and ▁analyz ed ▁previous ▁arch ae ological ▁collections ▁by ▁the ▁ 2 0 th - century ▁Jes uit ▁César ▁Cast ald í ▁in ▁the ▁southern ▁half ▁of ▁the ▁pen ins ula ▁and ▁by ▁the ▁ 1 9 th - century ▁natural ist ▁Edward ▁Pal mer ▁at ▁Bah ía ▁de ▁los ▁Áng eles ▁in ▁the ▁north . ▁Two ▁articles ▁presented ▁interpret ive ▁over views ▁of ▁the ▁pen ins ula ' s ▁pre history . ▁M asse y ▁provided ▁the ▁initial ▁arch ae ological ▁definitions ▁of ▁B aja ▁California ' s ▁Las ▁Pal mas ▁and ▁Com ond ú ▁complex es . ▁ ▁References ▁ ▁Category : 1 9 1 7 ▁birth s ▁Category : 1 9 7 4 ▁death s ▁Category : American ▁anth rop olog ists ▁Category : American ▁arch ae olog ists ▁Category : 2 0 th - century ▁anth rop olog ists ▁Category : 2 0 th - century ▁arch ae olog ists ▁Category : Arch ae olog ists ▁of ▁the ▁B aja ▁California ▁pen ins ula ▁Category : Pe ople ▁from ▁San ▁Mate o , ▁California ▁Category : Univers ity ▁of ▁California , ▁Ber keley ▁al umn i ▁Category : Mer ritt ▁College ▁fac ulty ▁Category : Univers ity ▁of ▁Washington ▁fac ulty ▁Category : Univers ity ▁of ▁Florida ▁fac ulty ▁Category : Tex as ▁Christian ▁University ▁fac ulty <0x0A> </s> ▁Richard ▁M . ▁C eb ra ▁( born ▁May ▁ 1 8 , ▁ 1 9 6 4 )