Biology:Guildayichthyidae
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]
Their taxonomy has long been debated, with studies placing them within the Neopterygii, while others placed them within the Cladistia. A 2025 study found them to most likely be the sister group to the extinct Bobasatraniiformes, with the two forming an early-diverging clade within the crown group Actinopterygii.[4]
Taxonomy
This family consists of the following genera and species:[1]
- Genus Guildayichthys Lund, 2000
- Species Guildayichthys carnegiei Lund, 2000
- Genus Discoserra Lund, 2000
- Species Discoserra pectinodon Lund, 2000
References
- ↑ 1.0 1.1 Lund, Richard (2000). "The new Actinopterygian order Guildayichthyiformes from the Lower Carboniferous of Montana (USA)". Geodiversitas 22 (2): 171–206. https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/g2000n2a2.pdf.
- ↑ 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.
- ↑ "Exquisitely-Preserved Guildayichthys Mississippian Bear Gulch Fish". http://www.fossilmall.com/Science/Sites/beargulch/Guildayichthys/Guildayichthys.htm.
- ↑ Stack, Jack. "An ontological morphological phylogenetic framework for living and extinct ray-finned fishes (Actinopterygii)" (in en). The Anatomical Record n/a (n/a). doi:10.1002/ar.70090. ISSN 1932-8494. https://onlinelibrary.wiley.com/doi/abs/10.1002/ar.70090.
Template:Actinopterygian genera Template:Cladistia Template:Chondrostei Wikidata ☰ {{{from}}} entry
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