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 culture, a culture of Native American mound-builders from 900 to 1500 AD ...
Bear Gulch Limestone
The Bear Gulch Limestone is a limestone-rich geological lens in central Montana, renowned for the quality of its late Mississippian-aged fossils. It is exposed over a number of outcrops northeast of the Big Snowy Mountains, and is often considere ...
of
Montana
Montana () is a U.S. state, state in the Mountain states, Mountain West List of regions of the United States#Census Bureau-designated regions and divisions, division of the Western United States. It is bordered by Idaho to the west, North ...
.
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''
Lund, 2000
** Species ''
Discoserra pectinodon''
Lund, 2000
References
Prehistoric fish of North America
Prehistoric ray-finned fish families
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