CREATE TABLE table_67739 ("Island" CLOB, "Nickname" CLOB, "Area" CLOB, "Population  ( as of 2010 ) " FLOAT, "Highest point" CLOB, "Elevation" CLOB, "Age  (  Ma  ) " CLOB)

Name the nickname with age of 4.9
SELECT "Nickname" FROM table_67739 WHERE "Age ( Ma )" = '4.9'
SELECT "Nickname" FROM "table_67739" WHERE "Age ( Ma )" = '4.9'