Oryza sativa indicates that rice domestication likely began before 5000 BC, but that most sites in China from which rice remains have been recovered are younger than 5000 BC. Rice begins to be cultivated in South Asia from as early as 5000 BC. Wild rice appeared in the Belan and Ganges valley regions of northern India as early as 4530 BC and 5440 BC, respectively, J.Bates et al.(2016) found early domestication process of rice in ancient South Asia was based around the wild species "Oryza nivara". This led to the local development of a mix of 'wetland' and 'dryland' agriculture of local
Rissoina oryza 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 large aperture is oblique and has a sub-ovate shape. The thick peristome is dilated. The columella is