Biology:Benneviaspidida

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Short description: Order of fossil fishes

Benneviaspidida
Temporal range: 416–398 Ma
Early Devonian
Boreaspis.JPG
Life restoration of Boreaspis
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Osteostraci
Order: Benneviaspidida
Subgroups[1]
  • Benneviaspis
  • Ectinaspis
  • Securiaspis
  • Boreaspidoidea
    • Hoelaspis
    • Severaspis
    • Boreaspididae
      • Belonaspis
      • Boreaspis
      • Spatulaspis
      • Tauraspis

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

Ectinaspis

Securiaspis

"Benneviaspis" longicornis

"Benneviaspis" anglica

"Benneviaspis" lankasteri

Benneviaspis

Boreaspidoidea

Hoelaspis

Severaspis

"Boreaspis" ceratops

"Boreaspis" intermedia

Boreaspis

Dicranaspis

Spatulaspis

Belonaspis

Hapilaspis

Tauraspis

References

  1. 1.0 1.1 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

Wikidata ☰ Q4889790 entry