heterostracan

a. Heterostraci的变形

词形变化

heterostracans 复数 heterostracans

释义与例句

n.
  1. 1.

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

词汇关系

名词

上位词 1

agnathan

词源

Heterostraci + -an

来源：wiktionary