Benneviaspidida

Taxobox
name = "Benneviaspidida"


image_caption = "Boreaspis", a fish in order "Benneviaspidida"
fossil_range = Early Devonian
regnum = Animalia
phylum = Chordata
classis = Osteostraci

"Benneviaspidida" is an order in cladogram of prehistoric fishes which lived in the Early Devonian. The fishes in order "Benneviaspidida" have flat headshield and dorsoventrally depressed. They have also short body. The first canal to lateral sensory field bifurcates near the orbit.

Phylogeny

*Osteostraci
**"Ateleaspis"
**"Aceraspis"
**"Tuvaspis"
*** "Hirella"
****"Hemicyclaspis"
***** Tremataspidae
***** Dartmuthiidae
***** Sclerodontidae
***** Tannuaspidida
***** Cornuta
****** Cephalaspidida
******Zenaspidida
*******Benneviaspidida

External links

* [http://www.palaeos.com/Vertebrates/Units/050Thelodonti/050.700.html#Benneviaspidida Benneviaspidida at Palaeos]
* [http://www.tolweb.org/Osteostraci Osteostraci by Philippe Janvier]
* [http://www.fmnh.helsinki.fi/users/haaramo/metazoa/deuterostoma/chordata/Agnatha/Osteostraci.htm Osteostraci at Mikko's Phylogeny Archive]
* [http://www.vertpaleo.org/publications/jvp/15-449-462.cfm Early Devonian osteostracans from Russia]