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Megapiranha paranensis Cione et al. 2009 (ray-finned fish)

Osteichthyes - Characiformes - Serrasalmidae

PaleoDB taxon number: 261305

Full reference: L. A. Cione, W. M. Dahdul, J. G. Lundberg and A. Machado-Allison. 2009. Megapiranha paranensis, a new genus and species of Serrasalmidae (Characiformes, Teleostei) from the upper Miocene of Argentina. Journal of Vertebrate Paleontology 29(2):350-358

Belongs to Megapiranha according to L. A. Cione et al. 2009

Sister taxa: none

Type specimen: MLP 96-XI-5-1, fragmentary right premaxilla with three complete teeth and one fragmentary tooth, a maxilla (Partial premaxilla). Its type locality is Paraná River Cliffs, which is in a Huayquerian fluvial conglomerate/mudstone in the Ituzaingo Formation of Argentina.

Ecology: aquatic

Average measurements (in mm): Isolated tooth, Base labiolingual distance length 9.50, Isolated tooth, Base mesiodistal distance width 8.70, Isolated tooth, Labiolingual base distance/ Mesiodistal base distance circumference 10.9, Premaxillary tooth 1, Base mesiodistal distance width 9.70, Premaxillary tooth 2, Base labiolingual distance length 12.2, Premaxillary tooth 2, Base mesiodistal distance width 9.30, Premaxillary tooth 2, Labiolingual base distance/ Mesiodistal base distance circumference 1.31, Premaxillary tooth 3, Base labiolingual distance length 12.4, Premaxillary tooth 3, Base mesiodistal apex distance width 5.20, Premaxillary tooth 3, Base mesiodistal distance width 10.4, Premaxillary tooth 3, Crown area (mm2) circumference 166.6, Premaxillary tooth 3, Crown mesiodistal distance width 12.0, Premaxillary tooth 3, Labiolingual base distance/ Mesiodistal base distance circumference 1.19, Premaxillary tooth 4, Base labiolingual distance length 8.30, Premaxillary tooth 4, Base mesiodistal apex distance width 3.80, Premaxillary tooth 4, Base mesiodistal distance width 6.60, Premaxillary tooth 4, Crown area (mm2) circumference 69.2, Premaxillary tooth 4, Crown mesiodistal distance width 7.80, Premaxillary tooth 4, Labiolingual base distance/ Mesiodistal base distance circumference 1.26, Premaxillary tooth 5, Base labiolingual distance length 11.0, Premaxillary tooth 5, Base mesiodistal apex distance width 4.60, Premaxillary tooth 5, Base mesiodistal distance width 8.40, Premaxillary tooth 5, Crown area (mm2) circumference 129.9, Premaxillary tooth 5, Crown mesiodistal distance width 10.2, Premaxillary tooth 5, Labiolingual base distance/ Mesiodistal base distance circumference 1.31, Premaxillary tooth 6, Base labiolingual distance length 12.6, Premaxillary tooth 6, Base mesiodistal distance width 9.00, Premaxillary tooth 6, Labiolingual base distance/ Mesiodistal base distance circumference 1.43, Premaxillary tooth 7, Base labiolingual distance length 9.90, Premaxillary tooth 7, Base mesiodistal distance width 7.60, Premaxillary tooth 7, Labiolingual base distance/ Mesiodistal base distance circumference 1.30