Biology:Benneviaspidida

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Short description: Order of fossil fishes

Benneviaspidida
Temporal range: 416–398 Ma
Early Devonian
Life restoration of Boreaspis
Scientific classification e
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. 

Wikidata ☰ Q4889790 entry