Benneviaspidida
| Benneviaspidida Temporal range: Early Devonian
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| Life restoration of Boreaspis | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Infraphylum: | Agnatha |
| Class: | †Osteostraci |
| Order: | † |
| Subgroups[1] | |
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Benneviaspidida is an order of osteostracan jawless fishes which lived in the Early Devonian. The fishes in this order have a flat headshield and are dorsoventrally depressed. The first canal to lateral sensory field bifurcates near the orbit.
Phylogeny
The cladogram below is adapted from Sansom (2009):[1]
| Benneviaspidida |
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References
- ^ a b Sansom, R. S. (2009). "Phylogeny, classification and character polarity of the Osteostraci (Vertebrata)". Journal of Systematic Palaeontology. 7 (1): 95–115. doi:10.1017/S1477201908002551.
External links
- Benneviaspidida at Palaeos
- Osteostraci by Philippe Janvier
- Osteostraci at Mikko's Phylogeny Archive
- Early Devonian osteostracans from Russia
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