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

References

  1. ^ 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.


Allikas: https://en.wikipedia.org/wiki/Benneviaspidida
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