Biology:Tesakoviaspis

Tesakoviaspis; Temporal range: Middle Ordovician PreЄ Є 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;

Short description: Extinct genus of jawless fishes

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

References

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Original source: https://en.wikipedia.org/wiki/Tesakoviaspis. Read more