Triquetral bone months (4 years and 2 months). The "superior surface" presents a medial, rough, non-articular portion, and a lateral convex articular portion which articulates with the triangular articular disk of the wrist. The "inferior surface", directed lateralward, is concave, sinuously curved, and smooth for articulation with the hamate. The dorsal surface is rough for the attachment of ligaments. The "volar surface" presents, on its medial part, an oval facet, for articulation with the pisiform; its lateral part is rough for ligamentous attachment. The "lateral surface", the base of the pyramid, is marked by a flat, quadrilateral facet, for articulation with the
House of Gold & Bones – Part 2 written by Corey Taylor and illustrated by Richard Clark. "House of Gold & Bones – Part 2" was released on April 9, 2013. The album sold 35,000 copies in the US in its first week and debuted at number-ten on the "Billboard" 200 chart. "House of Gold & Bones – Part 2" much like its predecessor, "House of Gold & Bones – Part 1", received critical acclaim upon release. Gregory Heaney of Allmusic gave the album four out of five stars and said that the band's decision to release the material in two parts was "a smart move" and concluded