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Petradyptes stonehousei
Taxonomy
Petradyptes stonehousei was named by Ksepka et al. (2023). Its type specimen is NMNZ S.47114, a partial skeleton, and it is a 3D body fossil. Its type locality is Hampden Beach, which is in a Paleocene marine horizon in the Moeraki Formation of New Zealand. It is the type species of Petradyptes.
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Petradyptes stonehousei Ksepka et al. p. 7 figs. 5, 6 |
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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.
†Petradyptes stonehousei Ksepka et al. 2023
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. T. Ksepka et al. 2023 | Differs from all other Paleocene penguins in strongly flattened humerus shaft (midshaft width more than twice midshaft depth). Differs from Muriwaimanu,
Sequiwaimanu, and Kupoupou in wider fossa formed by impressio m. pectoralis. Differs from Muriwaimanu, Sequiwaimanu, and Crossvallia in more distally extended insertion scar for m. supracoracoideus. Differs from Kaiika in proportionally wider humerus shaft, greater proximodistal length of crista bicipitalis, and more proximodistally elongate scar for m. supracoracoideus. We note that the deep groove on the tuberculum ventrale of Kaiika maxwelli, which was originally considered autapomorphic for that species, is more likely to be an artifact of incomplete preservation of the natural mold used to cast the holotype humerus. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Benton 1983, Marsh 1875, Bush and Bambach 2015 | |||||
Age range: Late/Upper Paleocene or 59.24000 to 56.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Paleocene | New Zealand (South Island) | Petradyptes stonehousei (type locality: 190583) |