Oryza sativa times can be found in the Cordillera Mountain Range of Luzon in the provinces of Apayao, Benguet, Mountain Province and Ifugao. The Banaue Rice Terraces (Tagalog: "Hagdan-hagdang Palayan ng Banaue") are 2,000- to 3,000-year-old terraces that were carved into the mountains by ancestors of the Batad indigenous people. The terraces are commonly thought to have been built with minimal equipment, largely by hand. The terraces are located about 1,500 m (5,000 ft) above sea level and cover 10,360 km (about 4,000 mi) of mountainside. They are fed by an ancient irrigation system from the rainforests above the terraces. Evidence of
Rissoina oryza oblique. This species occurs in the Red Sea and in the South Pacific off the Fiji Islands. Rissoina oryza Rissoina oryza is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae. The height of the small, white shell attains 2 mm. The shell has an oblong-ovate shape. It is solid, smooth, and shining, The spire is moderately elevated, and rather rapidly tapering. The apex is obtuse. The 6-7 whorls are flatly convex. The body whoprl is rather large, and slightly compressed beneath. The suture is faintly impressed and broadly margined beneath. The rather