Zenaspis
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Fossil of Zenaspis powriei | |
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Genus: | Zenaspis Lankester, 1869 |
Zenaspis is an extinct genus of jawless fish which existed during the early Devonian period. Due to it being jawless, Zenaspis was probably a bottom feeder. The fish was around 10 inches (25 cm) in length. It had a horseshoe shaped head that probably sheltered a small brain.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Zenaspis_NT_small.jpg/220px-Zenaspis_NT_small.jpg)