Zenaspididae

Extinct family of jawless fishes

Zenaspididae

Fossil of Zenaspis powriei
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Osteostraci
Order:	Zenaspidida
Family:	Zenaspididae Stensiö, 1958
Genera
Diademaspis Djurinaspis Machairaspis Scolenaspis Stensiopelta Superciliaspis Tegaspis Ukrainaspis Zenaspis Janaspis

Zenaspididae is an extinct family of jawless fish in the order Zenaspida.^[1]^[2]

References

^ A new species of osteostracan from the Lochkovian (Early Devonian) of the Mackenzie Mountains, with comments on body size, growth, and geographic distribution in the genus Machairaspis. Bradley R. Scott and Mark V.H. Wilson, Revue canadienne des sciences de la Terre, 2013, 50(2): 127-134, doi:10.1139/cjes-2012-0100
^ A New Osteostracan Fauna From The Devonian Of The Welsh Borderlands And Observations On The Taxonomy And Growth Of Osteostraci. Joseph N. Keating, Robert S. Sansom and Mark A. Purnell, Journal of Vertebrate Paleontology 32(5):1002–1017, September 2012

Osteostraci

Hemicyclaspis Ungulaspis
Ateleaspididae	Aceraspis Ateleaspis Hirella

Benneviaspis Ectinaspis Hoelaspis Securiaspis Severaspis
Boreaspididae	Belonaspis Boreaspis Hapilaspis Spatulaspis Tauraspis

Aestiaspis Auchenaspis Dartmuthia Didymaspis Ilemoraspis Procephalaspis Saaremaspis Thyestes Tyriaspis Witaaspis
Kiaeraspididae	Acrotomaspis Axinaspis Gustavaspis Kiaeraspis Nectaspis Norselaspis
Tremataspididae	Dobraspis Oeselaspis Sclerodus Tannuaspis Timanaspis Tremataspis

Spangenhelmaspis Wladysagitta
Parameteoraspididae	Balticaspis Escuminaspis Levesquaspis Parameteoraspis Trewinia
Superciliaspididae	Dentapelta Glabrapelta Superciliaspis
Scolenaspididae	Machairaspis Scolenaspis Ukrainaspis
Zenaspididae	Diademaspis Stensiopelta Tegaspis Zenaspis