Anaspida (Noun)
Meaning
Extinct order of jawless vertebrates.
Classification
Nouns denoting animals.
Examples
- Anaspida is an extinct order of jawless vertebrates that lived primarily during the Silurian and Devonian periods.
- Fossil records indicate that anaspida were characterized by having a single gill opening on either side of their head.
- Certain fossils discovered in Scandinavian regions are classified as belonging to the anaspida order of jawless vertebrates.
- Some of the most distinct characteristics of anaspida include their torpedo-shaped bodies, usually covered with protective armoured scales.
- Experts believe that anaspida are among the earliest known vertebrates that have been discovered to date.