Tesakoviaspis

Tesakoviaspis Temporal range: Middle Ordovician PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Pteraspidomorphi
Subclass:	Astraspida
Order:	Tesakoviaspidida
Family:	Tesakoviaspididae
Genus:	Tesakoviaspis Karatajūtė-Talimaa 1978 ex Karatajūtė-Talimaa & Meredith-Smith 2004
Species
T. concentrica Karatajūtė-Talimaa 1978 ex Karatajūtė-Talimaa & Meredith-Smith 2004

Tesakoviaspis concentrica is an extinct species of primitive jawless fish from the Middle Ordovician.[1]

References

1. Karatajute-Talimaa & Meredith Smith (2004). "Tesakoviaspis concentrica". BioLib.