Tartuosteus

Tartuosteus
Temporal range:
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Infraphylum: Agnatha
Class: Pteraspidomorpha
Subclass: Heterostraci
Order: Pteraspidiformes
Suborder: Psammosteida
Genus: Tartuosteus
Obruchev, 1961
Type species
Psammolepis gigantea
Gross, 1933

Tartuosteus is an extinct genus of jawless fish from the Devonian of Eastern Europe. It is notable for its large size in comparison to other Ostracoderms, reaching a width of 1.5 m (4.9 ft).