Parietal

Parietal (literally "belonging to walls") may refer to:

• Parietal art, artwork done on cave walls or large blocks of stone
• Parietal callus, feature of the shell anatomy of some groups of snails
• Parietal eye, "third eye" of some animal species
• Parietal scales of a snake lie in the general region of the parietal bone
• Parietal wall, part of the margin of the aperture of a snail shell
• The term may also refer to an extension of bone, popularly known as a neck frill, on the skulls of dinosaurs of the suborder Marginocephalia