Dictyopyge

Dictyopyge Temporal range: Early Carnian[1] PreꞒ Ꞓ O S D C P T J K Pg N ↓
Specimen of D. macrura
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	†Redfieldiiformes
Family:	†Redfieldiidae
Genus:	†Dictyopyge Egerton, 1847
Species[1]
Dictyopyge macrurus Redfield, 1841 Dictyopyge meekeri Schaeffer and McDonald, 1978
Synonyms[2]
Dictopyge Dictyopype

Dictyopyge is an extinct genus of prehistoric freshwater ray-finned fish that inhabited eastern North America during the early part of the Late Triassic.[1] Two species are recognized, both from the early Carnian-aged Doswell Formation in what is now Virginia, United States:[3][4]

• †D. macrura (Redfield, 1841) - Carnian of Virginia
• †D. meekeri Schafer & McDonald, 1978 - Carnian of Virginia

Both species inhabited the rift lakes of the Newark Supergroup, which formed due to the tectonic changes that were starting to break up Pangaea.[3]

Several possibly unrelated species from the Triassic of Europe are provisionally referred to Dictyopyge ("D." rhenana, "D." socialis, "D." catoptera, "D." superstes), while three species from the Middle Triassic of Australia previously referred to Dictyopyge have been tentatively reallocated to the genus Brookvalia.[5]

See also

• Prehistoric fish
• List of prehistoric bony fish

References

1. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on 2011-07-23. Retrieved 2009-02-27.
2. "Dictyopyge". Global Biodiversity Information Facility. Retrieved 2024-08-05.
3. Olsen, Paul E.; McCune, Amy R.; Thomson, Keith S. (1982). "Correlation of the Early Mesozoic Newark Supergroup by vertebrates, principally fishes". American Journal of Science. 282 (1): 1–44. Bibcode:1982AmJS..282....1O. doi:10.2475/ajs.282.1.1..
4. Weems, Robert E.; Tanner, Lawrence H.; Lucas, Spencer G. (2016). "Synthesis and revision of the lithostratigraphic groups and formations in the Upper Permian?–Lower Jurassic Newark Supergroup of eastern North America". Stratigraphy. 13 (2): 111–153. doi:10.29041/strat.13.2.03.
5. Romano, Carlo; Koot, Martha B.; Kogan, Ilja; Brayard, Arnaud; Minikh, Alla V.; Brinkmann, Winand; Bucher, Hugo; Kriwet, Jürgen (2016). "Permian-Triassic Osteichthyes (bony fishes): diversity dynamics and body size evolution". Biological Reviews. 91 (1): 106–147. doi:10.1111/brv.12161. PMID 25431138. S2CID 5332637.