The Geometric period in Greek art lasted from ca. 900 to ca. 700 BCE. It is named for the geometric patterns and motifs that were prevalent on pottery at this time. Painted vases were covered with lozenges, zigzags, checkerboards, meanders, and other abstract decorative motifs. Toward the end of the period simplified human and animal figures were introduced. Scholars subdivide the Geometric period into three parts: Early Geometric (ca. 900-850), Middle Geometric (ca. 850-760), and Late Geometric (ca. 760-700). Web resource here. See also: Protogeometric.

Middle Geometric amphora. Ca. 850-800 BCE. Museum of Art and Archaeology, University of Missouri, Columbia, MO.