The Jolly Roger
Either skull and cross bones or the pirate flag.
The Jolly Roger
The name given to any pirate flag is "Jolly Roger."
No reference exists for a "cross bone." However, the name"Cross Bones" is used for a medieval graveyard in Southwark, London. And the term "crossbones" is used for a pair of crossed long bones (in an X style) beneath a human skull, as "skull and crossbones": an insignia used both by classical pirates and as a symbol for "poison" or "death."
Calvarium
Your skull and mandible.
There is not a temple bone, its part of the cranium or the skull. The portion of the skull at the temple is called the temporal arch.
The Jolly Roger or the Death Flag.
top of the skull
The bone that holds your brain is called the skull, specifically the cranium. It is a protective structure that surrounds and supports the brain.
The skull and crossbones.
The back or your skull.