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Grallator crassidigitus
Taxonomy
Prototrisauropus crassidigitus was named by Ellenberger (1970). It is considered to be a form taxon. It is a trace fossil. Its type locality is Seaka tracksite (zone A/3), which is in a Hettangian/Sinemurian terrestrial sandstone in the Elliot Formation of Lesotho. It is the type species of Prototrisauropus.
It was recombined as Grallator crassidigitus by Olsen and Galton (1984).
It was recombined as Grallator crassidigitus by Olsen and Galton (1984).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1970 | Prototrisauropus crassidigitus Ellenberger p. 345 |
| 1972 | Prototrisauropus crassidigitus Ellenberger p. 45 |
| 1984 | Grallator crassidigitus Olsen and Galton p. 96 fig. 3 |
| 2021 | Prototrisauropus crassidigitus Klein and Lucas p. 100 |
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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.
†Grallator crassidigitus Ellenberger 1970
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Ellenberger 1972 | Cette espèce répond aux normes génériques données plus haut, dans leur ensemble.
- PES: Longueur du pied, 400 mm (du doigt, II, 221 mm; de III, 265 mm; de IV, 300 mm; projection de III en avant du bout des doigts latéraux, 110 mm). Largeur du pied entre l'extrémité des doigts latéraux, 260 mm. Divarication totale II-IV , 42° (II-III, 20° ; III-IV , 22°). Les coussinets de phalanges sont bien visibles au moins pour les traces au sol dur. - MANUS: Invisible. - PISTE: Enjambée 3,00 m à 3,10 m (Pas = 1,50 m à 1,55 mm, Ped angulatio, 7 à 8°, Ecartement 0,19 m à 0,21 m: la démarche se fait donc d'une façon un peu oscillante (dandinement), Pour la 2ème piste le pas n'est que de 1,05 m, ped. angulatio de 9°. Il est curieux pour cette variété au pas lent de voir un appui exclusif sur la pointe des pieds. |
Measurements
No measurements are available
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| Source: o = order | |||||
| References: Marsh 1875, Kiessling 2004 | |||||
Age range: base of the Hettangian to the top of the Sinemurian or 201.40000 to 192.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hettangian - Sinemurian | Lesotho (Quthing) | Prototrisauropus crassidigitus (type locality: 56003) |