shell-headed

shell-headed

Said of a decoration, generally concave in shape, that is often similar in appearance to the shell of a sea scallop; often found at the head of a building component in Spanish architecture and its derivatives.
References in periodicals archive ?
The Ballroom is extended into the portico by Bryce, with the addition of an apse and shell-headed doorway
After the fire, the Wari placed semiprecious stones and shell-headed necklaces atop the embers, symbolizing the site's sacredness to their culture, Williams says.