Temporoparietalis
A thin, variable muscle in the superficial scalp above the ear, distinct from the deeper temporalis.
Attachments & illustration source
Fibers in the superficial temporoparietal fascial plane blend toward the galea aponeurotica above and the auricular musculature below. Its extent and thickness vary, and a distinct muscle is not present in everyone.
Original anatomical illustration. Fine attachment boundaries are simplified.
Anatomy reference 1