Zenaspida
| Zenaspida | |
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| Fossil of Zenaspis powriei | |
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| Order: | Zenaspidida Stensiö, 1958 sensu Sansom, 2009 |
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Zenaspidida | |
Zenaspida is an extinct order of jawless fish.[1]
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
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