Guildayichthyidae is a prehistoric family of marine fish from the
Mississippian
Mississippian may refer to:
* Mississippian (geology), a subperiod of the Carboniferous period in the geologic timescale, roughly 360 to 325 million years ago
* Mississippian cultures, a network of precontact cultures across the midwest and Easte ...
Bear Gulch Limestone
The Bear Gulch Limestone is a limestone-rich Lens (geology), geological lens in central Montana, renowned for the quality of its marine fossils from the late Mississippian (geology), Mississippian subperiod, about 324 million years ago. It is expo ...
of
Montana
Montana ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Idaho to the west, North Dakota to the east, South Dakota to the southeast, Wyoming to the south, an ...
.
It is the only family in the order Guildayichthyiformes. Guildayichthyids possess an uncommon mixture of primitive and modern characteristics in their skull bones.
Taxonomy
This family consists of the following genera and species:
* Genus ''
Guildayichthys''
Lund, 2000
** Species ''
Guildayichthys carnegiei''
Lund, 2000
* Genus ''
Discoserra
''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. ''D ...
''
Lund, 2000
** Species ''
Discoserra pectinodon
''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. ''D ...
''
Lund, 2000
References
Prehistoric fish of North America
Prehistoric ray-finned fish families
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