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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Megapiranha paranensis
Taxonomy
Megapiranha paranensis was named by Cione et al. (2009). Its type specimen is MLP 96-XI-5-1, fragmentary right premaxilla with three complete teeth and one fragmentary tooth, a maxilla (Partial premaxilla), and it is a 3D body fossil. Its type locality is Paraná River Cliffs, which is in a Huayquerian fluvial conglomerate/mudstone in the Ituzaingo Formation of Argentina. It is the type species of Megapiranha.
Synonymy list
| Year | Name and author |
|---|---|
| 2009 | Megapiranha paranensis Cione et al. |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Megapiranha paranensis Cione et al. 2009
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| Isolated tooth, Labiolingual base distance/ Mesiodistal base distance circumference | 1 | 10.9 | |||||
| Premaxillary tooth 2, Labiolingual base distance/ Mesiodistal base distance circumference | 1 | 1.31 | |||||
| Premaxillary tooth 3, Crown area (mm2) circumference | 1 | 166.6 | |||||
| Premaxillary tooth 3, Labial basoapical height height | 1 | 14.4 | |||||
| Premaxillary tooth 3, Labial basoapical height (direct) height | 1 | 14.4 | |||||
| Premaxillary tooth 3, Labial basoapical height/ Lingual basoapical height height | 1 | 1.16 | |||||
| Premaxillary tooth 3, Labiolingual base distance/ Mesiodistal base distance circumference | 1 | 1.19 | |||||
| Premaxillary tooth 3, Lingual basoapical height height | 1 | 12.1 | |||||
| Premaxillary tooth 3, Lingual basoapical height (direct) height | 1 | 13.8 | |||||
| Premaxillary tooth 4, Crown area (mm2) circumference | 1 | 69.2 | |||||
| Premaxillary tooth 4, Labial basoapical height height | 1 | 11.2 | |||||
| Premaxillary tooth 4, Labial basoapical height (direct) height | 1 | 11.2 | |||||
| Premaxillary tooth 4, Labial basoapical height/ Lingual basoapical height height | 1 | 1.93 | |||||
| Premaxillary tooth 4, Labiolingual base distance/ Mesiodistal base distance circumference | 1 | 1.26 | |||||
| Premaxillary tooth 4, Lingual basoapical height height | 1 | 5.80 | |||||
| Premaxillary tooth 4, Lingual basoapical height (direct) height | 1 | 8.80 | |||||
| Premaxillary tooth 5, Crown area (mm2) circumference | 1 | 129.9 | |||||
| Premaxillary tooth 5, Labial basoapical height height | 1 | 11.6 | |||||
| Premaxillary tooth 5, Labial basoapical height (direct) height | 1 | 12.8 | |||||
| Premaxillary tooth 5, Labial basoapical height/ Lingual basoapical height height | 1 | 1.25 | |||||
| Premaxillary tooth 5, Labiolingual base distance/ Mesiodistal base distance circumference | 1 | 1.31 | |||||
| Premaxillary tooth 5, Lingual basoapical height height | 1 | 9.30 | |||||
| Premaxillary tooth 5, Lingual basoapical height (direct) height | 1 | 11.8 | |||||
| Premaxillary tooth 6, Labiolingual base distance/ Mesiodistal base distance circumference | 1 | 1.43 | |||||
| Premaxillary tooth 7, Labiolingual base distance/ Mesiodistal base distance circumference | 1 | 1.30 |
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| Source: s = species, o = order, c = class, subp = subphylum | |||||
| References: Carroll 1988, Cione et al. 2009, Bush and Bambach 2015 | |||||
Age range: Huayquerian or 8.00000 to 5.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Huayquerian | Argentina (Entre Rios) | Megapiranha paranensis (type locality: 140471 140472) |