heterostracan

Etymology

Heterostraci + -an

heterostracan means Any of the subclass Heterostraci of extinct jawless vertebrates that lived primarily in marine and estuary environments. Lexicurio rates it Sui generis — a strength score of 87 out of 100.

noun

Any of the subclass Heterostraci of extinct jawless vertebrates that lived primarily in marine and estuary environments.