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 YouTube channel on February 8. On March 29, 2013, the band premiered "Gravesend" on Rolling Stone's website. On April 2, 2013, "House of Gold & Bones – Part 2" was made available for streaming in full on the band's official website, one week prior to its official retail release. There is also a four-part graphic novel series based on the album's concept that is titled "House of Gold and Bones". A teaser trailer was released on March 31 and announced that the series will be available on April 17 and will be published by Dark Horse Comics. The series is