From Wikipedia, the free encyclopedia

Benneviaspidida
Temporal range: 416–398  Ma Early Devonian
Life restoration of Boreaspis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Osteostraci
Order: Benneviaspidida
Subgroups [1]

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.
From Wikipedia, the free encyclopedia

Benneviaspidida
Temporal range: 416–398  Ma Early Devonian
Life restoration of Boreaspis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Osteostraci
Order: Benneviaspidida
Subgroups [1]

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.

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