The original Indic design was gradually modified first by the Pyu, and then by Burmans at Pagan where the "stupa" gradually developed a longer, cylindrical form. The earliest Pagan "stupas" such as the Bupaya (c. 9th century) were the direct descendants of the Pyu style at Sri Ksetra. By the 11th century, the "stupa" had developed into a more bell-shaped form in which the parasols morphed into a series of increasingly smaller rings placed on one top of the other, rising to a point. On top the rings, the new design replaced the "harmika" with a lotus bud. The lotus bud design then evolved into the "banana bud", which forms the extended apex of most Burmese pagodas. Three or four rectangular terraces served as the base for a pagoda, often with a gallery of terra-cotta tiles depicting Buddhist "jataka" stories. The Shwezigon Pagoda and the Shwesandaw Pagoda are the earliest examples of this type. Examples of the trend toward a more bell-shaped design gradually gained primacy as seen in the Dhammayazika Pagoda (late 12th century) and the Mingalazedi Pagoda (late 13th century).