Rio Negro, between Tacuarembo and Durazno departments (Permian to of Uruguay)

Where: Northern Uruguay, Uruguay (32.8° S, 56.5° W: paleocoordinates 52.2° S, 46.3° W)

When: San Gregorio Formation, Asselian to Asselian (298.9 - 290.1 Ma)

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Primary reference: L. Beltan. 1977. Decouverte d'une ichthyofaune dans le Carbonifere superiuer d'Uruguay. Rappots avec les faunes ichthyologiques contemporaines des autres regions du Gondwana. Annales de la Scoiete Geologique du Nord 97:351-355 [J. Flannery-Sutherland/J. Flannery-Sutherland]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 232871: authorized by Joseph Flannery-Sutherland, entered by Joseph Flannery-Sutherland on 04.01.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Osteichthyes
 Actinopterygii - Coccocephalichthyidae
Coccocephalus tessellatus1
Coccocephalus tessellatus1 Poplin and Véran 1996 ray-finned fish
 Elonichthyiformes - Acrolepidae
Mesonichthys antipodeus, Gondwanichthys maximus
Mesonichthys antipodeus Beltan 1978 ray-finned fish
Gondwanichthys maximus Beltan 1977 ray-finned fish
 Elonichthyiformes - Elonichthyidae
Elonichthys macropercularis
Elonichthys macropercularis Beltan 1977 ray-finned fish
 Elonichthyiformes - Eigiliidae
Carbonilepis uruguayensis
Carbonilepis uruguayensis Beltan 1977 ray-finned fish
 Palaeonisciformes - Pygopteridae
Itararichthys microphthalmus
 Palaeonisciformes - Rhadinichthyidae
Rhadinichthys rioniger
 Palaeoniscimorpha -
Monesedeiphus depressus2, Daphnaechelus formosus, Irajapintoseidon uruguayensis2
Daphnaechelus formosus Schultze et al. 2021
1Beltan 1981; 2Beltan 1989