Arandaspida
Sign in to savethumb|left|Sacabambaspis, the best known arandaspid, from the Ordovician of Bolivia. Shows the characteristic, frontally positioned eyes, like car head lamps Arandaspida is a taxon of very early, jawless prehistoric fish which lived during the Ordovician period. Arandaspids represent some of the oldest known vertebrates. The group represents a subclass within the class Pteraspidomorphi, and contains only one order, the Arandaspidiformes. The oldest known genus of this group is Sacabambaspis found in South America.
~3 min read
Encyclopedic overview
4 sectionsContents
- Characteristics
- Taxonomy
- See also
- References
thumb|left|Sacabambaspis, the best known arandaspid, from the Ordovician of Bolivia. Shows the characteristic, frontally positioned eyes, like car head lamps
Arandaspida is a taxon of very early, jawless prehistoric fish which lived during the Ordovician period. Arandaspids represent some of the oldest known vertebrates. The group represents a subclass within the class Pteraspidomorphi, and contains only one order, the Arandaspidiformes. The oldest known genus of this group is Sacabambaspis found in South America.
Excerpted from Wikipedia’s “Arandaspida” article, available under the CC BY-SA 4.0 licence.