Landmark point

Usually experts define anatomical points to ensure their correspondences within the same species.

Examples of anatomical landmark in shape of a skull are the eye corner, tip of the nose, jaw, etc.

Anatomical landmarks determine homologous parts of an organism, which share a common ancestry.

A computer program usually determines mathematical landmarks used for an automatic pattern recognition.

Pseudo-landmarks are constructed points located between anatomical or mathematical landmarks.

Position of landmark points (1-12), that were used for morphometric analysis of shells of Nucella lapillus .