From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Temporal range: Middle Jurassic - Late Cretaceous
Aspidorhynchus acustirostris.jpg
Aspidorhynchus acustirostris
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclass: Osteichthyes
Class: Actinopterygii
Subclass: Neopterygii
Order: Aspidorhynchiformes
Bleeker, 1859

Aspidorhynchiformes (meaning "shield snout form") is an extinct order of prehistoric ray-finned fish that was described by Bleeker in 1859.


Aspidorhynchiformes has one family, which is divided into at least two genera:[1][2][3]

Fossils range have been found in the United States, France, Italy, Russia, Saskatchewan, Alberta, North Dakota, Montana, Wyoming, and Uzbekistan. These fossils range from 167.7mya (Aspidorhynchus) to 66 mya (Belonostomus longirostris).

Vinctifer is presumably closely related, but has several differences from the other two; though it is likely a member of the Aspidorhynchiformes, it might be treated as distinct from the Aspidorhynchidae.


  1. ^ Haaramo, Mikko (2007). "†Aspidorhynchiformes". Mikko's Phylogeny Archive. Retrieved 30 December 2016. 
  2. ^ Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (2016). Fishes of the World (5th ed.). John Wiley & Sons. ISBN 9781118342336. 
  3. ^ van der Laan, Richard (2016). "Family-group names of fossil fishes".