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Paraptenodytes robustus
Taxonomy
Palaeospheniscus robustus was named by Ameghino (1894). It is not extant.
It was recombined as Perispheniscus robustus by Brodkorb (1963); it was recombined as Paraptenodytes robustus by Simpson (1972), Acosta Hospitaleche (2005), Acosta Hospitaleche and Tambussi (2008) and Tambussi et al. (2023).
It was recombined as Perispheniscus robustus by Brodkorb (1963); it was recombined as Paraptenodytes robustus by Simpson (1972), Acosta Hospitaleche (2005), Acosta Hospitaleche and Tambussi (2008) and Tambussi et al. (2023).
Synonyms
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Synonymy list
Year | Name and author |
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1894 | Palaeospheniscus robustus Ameghino |
1901 | Paraptenodytes curtus Ameghino p. 81 |
1901 | Paraptenodytes grandis Ameghino p. 81 |
1905 | Palaeospheniscus robustus Ameghino p. 105 |
1905 | Metancylornis curtus Ameghino p. 129 |
1905 | Isotremornis nordenskjoldi Ameghino p. 134 |
1905 | Arthrodytes grandis Ameghino p. 144 |
1905 | Treleudytes crassa Ameghino p. 156 |
1933 | Palaeospheniscus robustus Lambrecht p. 227 |
1933 | Metancylornis curtus Lambrecht p. 231 |
1933 | Isotremornis nordenskjoldi Lambrecht p. 232 |
1933 | Arthrodytes grandis Lambrecht p. 233 |
1933 | Treleudytes crassa Lambrecht p. 235 |
1946 | Palaeospheniscus robustus Simpson p. 28 |
1946 | Treleudytes crassus Simpson p. 31 |
1946 | Metancylornis curtus Simpson p. 32 |
1946 | Arthrodytes grandis Simpson p. 34 |
1963 | Arthrodytes grandis Brodkorb p. 235 |
1963 | Perispheniscus robustus Brodkorb p. 237 |
1963 | Isotremornis nordenskjoldi Brodkorb p. 239 |
1963 | Paraptenodytes curtus Brodkorb p. 239 |
1972 | Paraptenodytes robustus Simpson p. 22 |
1972 | Arthrodytes grandis Simpson p. 26 |
2005 | Paraptenodytes robustus Acosta Hospitaleche p. 408 |
2008 | Paraptenodytes robustus Acosta Hospitaleche and Tambussi p. 120 |
2023 | Paraptenodytes robustus Tambussi et al. p. 273 |
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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.
†Paraptenodytes robustus Ameghino 1894
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Invalid names: Arthrodytes grandis Ameghino 1901 [synonym], Isotremornis nordenskjoldi Ameghino 1905 [synonym], Paraptenodytes crassus Ameghino 1905 [synonym], Paraptenodytes curtus Ameghino 1901 [synonym]
Diagnosis
Reference | Diagnosis | |
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C. Acosta Hospitaleche and C. Tambussi 2008 | The preservation state of the material does not allow to base a diagnosis on the tarsometatarsus. Nevertheless, the size of its humerus makes possible to dif- ferentiate it from P. antarcticus.
Humerus. Robust but small, whereas it is slender and more elongate in P. antarcticus. The diaphysis is wide and the proximal epyphysis is proportionally larger than in P. antarcticus. The fossa tricipitalis is a little larger than in P. antarcticus. |