Benneviaspidida
Benneviaspidida | |
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Boreaspis, a fish in order Benneviaspidida | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Osteostraci |
Order: | Benneviaspidida |
Families | |
Benneviaspidida is an order of osteostracan jawless fishes which lived in the Early Devonian. The fishes in order Benneviaspidida have a flat headshield and are dorsoventrally depressed. The first canal to lateral sensory field bifurcates near the orbit.
Phylogeny
- Osteostraci
- Ateleaspis
- Aceraspis
- Tuvaspis
- Hirella
- Hemicyclaspis
- Tremataspidae
- Dartmuthiidae
- Sclerodontidae
- Tannuaspidida
- Cornuata
- Cephalaspidida
- Zenaspidida
- Benneviaspidida
- Hemicyclaspis
- Hirella
References
External links
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