Protaspis (disambiguation)

Protaspis (from ancient Greek πρώτος ( prôtos ) "the first", "first" and ἀσπίς ( Aspis ) "shield", "shield bearer") stands for:

• Protaspis , a genus of heterotrophic flagellates from the Cercomonadida group
• The earliest larval stage in the ontogenetic development of the trilobites
• An extinct genus of jawless fish from the order Pteraspidiformes

This is a disambiguation page for differentiating between several terms identified with the same word.