Discoserra

Discoserra pectinodon; Temporal range: Mississippian PreꞒ Ꞓ O S D C P T J K Pg N
	Fossil specimen in the Natural History Museum, Vienna
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	†Guildayichthyiformes
Family:	†Guildayichthyidae
Genus:	†Discoserra; Lund, 2000
Type species
	Discoserra pectinodon; Lund, 2000

Discoserra ("serrated disc") is a prehistoric ray-finned fish from the Mississippian of the Bear Gulch Limestone in Montana. It is a member of the Guildayichthyiformes with a round body and a skull possessing primitive and modern traits.^[1]^[2] Discoserra is about 60 mm long.^[3] In 2006, Discoserra was hypothesized to be a stem neopterygian,^[4] although it has alternatively been placed in Cladistia along with other Guildayichthyiformes.^[5]

References

^ Lund, Richard (2000). "The new Actinopterygian order Guildayichthyiformes from the Lower Carboniferous of Montana (USA)". Geodiversitas. 22 (2).
^ Richard Lund, Eileen Grogan, Geodiversitas, 2006
^ Fossil Museum
^ Kathryn E. Mickle, Unraveling the systematics of palaeoniscoid fish
^ Mikko Haaramo. "Cladistia – bichirs and relatives". Mikko's Phylogeny Archive. Retrieved 2013-10-26.

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[1] Lund, Richard (2000). "The new Actinopterygian order Guildayichthyiformes from the Lower Carboniferous of Montana (USA)". Geodiversitas. 22 (2).

[2] Richard Lund, Eileen Grogan, Geodiversitas, 2006

[3] Fossil Museum

[4] Kathryn E. Mickle, Unraveling the systematics of palaeoniscoid fish

[5] Mikko Haaramo. "Cladistia – bichirs and relatives". Mikko's Phylogeny Archive. Retrieved 2013-10-26.

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