(Redirected from Guildayichthyiformes)

Guildayichthyidae is a prehistoric family of marine fish from the Mississippian Bear Gulch Limestone of Montana.[1][2] It is the only family in the order Guildayichthyiformes. Guildayichthyids possess an uncommon mixture of primitive and modern characteristics in their skull bones.[3]

Temporal range: Mississippian
Discoserra (7992682068).jpg
Fossil of Discoserra pectinodon
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Guildayichthyiformes
Lund, 2000
Family: Guildayichthyidae
Lund, 2000

See text


This family consists of the following genera and species:[1]


  1. ^ a b Lund, Richard (2000). "The new Actinopterygian order Guildayichthyiformes from the Lower Carboniferous of Montana (USA)" (PDF). Geodiversitas. 22 (2): 171–206.
  2. ^ Albert, James S.; Johnson, Derek M. (23 November 2011). "Diversity and Evolution of Body Size in Fishes". Evolutionary Biology. 39 (3): 324–340. doi:10.1007/s11692-011-9149-0.
  3. ^ "Exquisitely-Preserved Guildayichthys Mississippian Bear Gulch Fish". FossilMall.