Gyronchus

Gyronchus; Temporal range:
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	†Pycnodontiformes
Genus:	†Gyronchus; Agassiz, 1844
Type species
	Gyronchus oblongus; Agassiz, 1844

Gyronchus is an extinct genus of prehistoric marine pycnodont fish from the Jurassic. This genus is currently treated as a wastebasket taxon, with several genera such as Macromesodon and Turbomesodon being split out of it.¹ The type species, G. oblongus Agassiz, 1844 is known from the Bathonian-aged Stonesfield Slate of England.² Another apparent freshwater species, G. dumblei is known from the Early Cretaceous-aged Paluxy Formation of Texas, US and the Antlers Formation of Oklahoma, but is more likely a member of Turbomesodon.³⁴⁵

References

Poyato-Ariza, F. J.; Wenz., S. (2004). "The new pycnodontid fish genus Turbomesodon, and a revision of Macromesodon based on new material from the Lower Cretaceous of Las Hoyas, Cuenca, Spain". Mesozoic Fishes 3—Systematics, Paleoenvironments and Biodiversity.: 341–378.
Woodward, Arthur Smith (1895). Catalogue of the Fossil Fishes in the British Museum (Natural History): containing the Actinopterygian Teleostomi of the orders Chondrostei (concluded), Protospondyli, Aetheospondyli, and Isospondyli (in part). Trustees of the British Museum.
Winkler, Dale A.; Murry, Phillip A.; Jacops, Louis L. (1990). "Early Cretaceous (Comanchean) Vertebrates of Central Texas". Journal of Vertebrate Paleontology. 10 (1): 95–116. Bibcode:1990JVPal..10...95W. doi:10.1080/02724634.1990.10011794. ISSN 0272-4634. JSTOR 4523300.
Brinkman, Daniel; Nydam, Randall L. (1997-01-01). "ADDITIONS TO THE VERTEBRATE FAUNA OF THE ANTLERS FORMATION (LOWER CRETACEOUS), SOUTHEASTERN OKLAHOMA". Oklahoma Geology Notes.
Cawley, John J.; Kriwet, Jürgen (2024-04-09). "The Fossil Record and Diversity of Pycnodontiform Fishes in Non-Marine Environments". Diversity. 16 (4): 225. Bibcode:2024Diver..16..225C. doi:10.3390/d16040225. ISSN 1424-2818.

External links

Bony fish in the online Sepkoski Database

[1] Poyato-Ariza, F. J.; Wenz., S. (2004). "The new pycnodontid fish genus Turbomesodon, and a revision of Macromesodon based on new material from the Lower Cretaceous of Las Hoyas, Cuenca, Spain". Mesozoic Fishes 3—Systematics, Paleoenvironments and Biodiversity.: 341–378.

[2] Woodward, Arthur Smith (1895). Catalogue of the Fossil Fishes in the British Museum (Natural History): containing the Actinopterygian Teleostomi of the orders Chondrostei (concluded), Protospondyli, Aetheospondyli, and Isospondyli (in part). Trustees of the British Museum.

[3] Winkler, Dale A.; Murry, Phillip A.; Jacops, Louis L. (1990). "Early Cretaceous (Comanchean) Vertebrates of Central Texas". Journal of Vertebrate Paleontology. 10 (1): 95–116. Bibcode:1990JVPal..10...95W. doi:10.1080/02724634.1990.10011794. ISSN 0272-4634. JSTOR 4523300.

[4] Brinkman, Daniel; Nydam, Randall L. (1997-01-01). "ADDITIONS TO THE VERTEBRATE FAUNA OF THE ANTLERS FORMATION (LOWER CRETACEOUS), SOUTHEASTERN OKLAHOMA". Oklahoma Geology Notes.

[5] Cawley, John J.; Kriwet, Jürgen (2024-04-09). "The Fossil Record and Diversity of Pycnodontiform Fishes in Non-Marine Environments". Diversity. 16 (4): 225. Bibcode:2024Diver..16..225C. doi:10.3390/d16040225. ISSN 1424-2818.

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See also

References

External links