Benneviaspidida: Difference between revisions

Benneviaspidida; Temporal range: Early Devonian
	Boreaspis, a fish in order Benneviaspidida
Conservation status
	Fossil
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Osteostraci

Browse history interactively

Next edit →

Content deleted Content added

VisualWikitext

Inline

Revision as of 04:32, 7 January 2008

Benneviaspidida was 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

External links

@@ Line 15: / Line 15: @@
 ==Phylogeny==
- └-[[Osteostraci]]
+*'''[[Osteostraci]]'''
-   ├─ ''[[Ateleaspis]]''
+**''[[Ateleaspis]]''
-   ├─ ''[[Aceraspis]]''
+**''[[Aceraspis]]''
-   ├─ ''[[Tuvaspis]]''
+**''[[Tuvaspis]]''
+*** ''[[Hirella]]''
-   └─-
-     ├─ ''[[Hirella]]''
+****''[[Hemicyclaspis]]''
+***** [[Tremataspidae]]
-     └─-
+***** [[Dartmuthiidae]]
-       ├─ ''[[Hemicyclaspis]]''
+***** [[Sclerodontidae]]
-       ├─? [[Tremataspidae]]
+***** [[Tannuaspidida]]
-       ├─? [[Dartmuthiidae]]
+***** [[Cornuta]]
-       ├─? [[Sclerodontidae]]
+****** [[Cephalaspidida]]
-       ├─? [[Tannuaspidida]]
+******[[Zenaspidida]]
-       └─- [[Cornuta]]
+*******[[Benneviaspidida]]
-         ├─? [[Cephalaspidida]]
-         └─[[Zenaspidida]]
-           └─[[Benneviaspidida]]
 ==External links==