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Tetrasauropus
Taxonomy
Tetrasauropus was named by Ellenberger (1970). It is considered to be a form taxon.
It was assigned to Melanorosauridae by Ellenberger (1970); to Pentasauropodia by Ellenberger (1972); to Prosauropoda by Nicosia and Loi (2003); to Sauropoda by Knoll (2004); to Prosauropoda by Hunt et al. (1998), Romero Molina et al. (2003), D'Orazi Porchetti and Nicosia (2007); to Navahopodidae by Olsen and Galton (1984), Milàn et al. (2008); and to Sauropodomorpha by Salisbury et al. (2016).
It was assigned to Melanorosauridae by Ellenberger (1970); to Pentasauropodia by Ellenberger (1972); to Prosauropoda by Nicosia and Loi (2003); to Sauropoda by Knoll (2004); to Prosauropoda by Hunt et al. (1998), Romero Molina et al. (2003), D'Orazi Porchetti and Nicosia (2007); to Navahopodidae by Olsen and Galton (1984), Milàn et al. (2008); and to Sauropodomorpha by Salisbury et al. (2016).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1970 | Tetrasauropus Ellenberger p. 345 |
| 1972 | Tetrasauropus Ellenberger p. 152 |
| 1984 | Tetrasauropus Olsen and Galton p. 95 |
| 1998 | Tetrasauropus Hunt et al. p. 523 |
| 2003 | Tetrasauropus Nicosia and Loi p. 138 |
| 2003 | Tetrasauropus Romero Molina et al. p. 24 |
| 2004 | Tetrasauropus Knoll p. 77 |
| 2007 | Tetrasauropus D'Orazi Porchetti and Nicosia pp. 222-227 |
| 2008 | Tetrasauropus Milàn et al. p. 204 |
| 2016 | Tetrasauropus Salisbury et al. p. 47 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. D'Orazi Porchetti and U. Nicosia 2007 | Large-sized quadrupedal track, plantigrade, with a tetradactyl pes showing a strong ectaxony, with foot axis almost parallel to the midline of the trackway. Strong claws which in the pes bend inward; manus smaller than the pes (about 2/3) with four digits. Manus regularly placed in front of, and external to, the pes. |
Measurements
No measurements are available
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| Source: infrao = infraorder, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988, Norman and Weishampel 1991 | |||||
Age range: base of the Middle Triassic to the top of the Norian or 246.70000 to 205.70000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Triassic | Argentina (Mendoza) | T. sp. (59670) | |
| Late/Upper Triassic | USA (Utah) | T. sp. (32300) | |
| Norian | Lesotho (Maseru) | T. unguiferus (149751) | |
| Norian | Switzerland (Graubunden) | Prosauropoda indet. (69623) | |
| Norian | United Kingdom (Wales) | T. sp. (222914) |