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Phocageneus
Taxonomy
Phocageneus was named by Leidy (1869) [Sepkoski's age data: T Mi-m Sepkoski's reference number: 746]. It is not extant. It was considered monophyletic by Muizon (1987) and Uhen et al. (2008) and Bianucci et al. (2013).
It was synonymized subjectively with Delphinodon by Hay (1902).
It was assigned to Platanistidae by Palmer (1904); to Delphinidae by Carroll (1988); to Autoceta by McKenna and Bell (1997); to Cetacea by Sepkoski (2002); to Squalodelphinidae by Fordyce and de Muizon (2001), Geisler and Sanders (2003), Whitmore and Kaltenbach (2008), Uhen et al. (2008), Bianucci et al. (2013), Lambert et al. (2014), Bianucci et al. (2015), Marx et al. (2016), Godfrey et al. (2017), Kimura (2018), Bianucci et al. (2018) and Nelson and Uhen (2018); and to Squalodelphidae by Muizon (1987), Muizon (1994), Gottfried et al. (1994) and Godfrey and Lambert (2023).
It was synonymized subjectively with Delphinodon by Hay (1902).
It was assigned to Platanistidae by Palmer (1904); to Delphinidae by Carroll (1988); to Autoceta by McKenna and Bell (1997); to Cetacea by Sepkoski (2002); to Squalodelphinidae by Fordyce and de Muizon (2001), Geisler and Sanders (2003), Whitmore and Kaltenbach (2008), Uhen et al. (2008), Bianucci et al. (2013), Lambert et al. (2014), Bianucci et al. (2015), Marx et al. (2016), Godfrey et al. (2017), Kimura (2018), Bianucci et al. (2018) and Nelson and Uhen (2018); and to Squalodelphidae by Muizon (1987), Muizon (1994), Gottfried et al. (1994) and Godfrey and Lambert (2023).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1869 | Phocageneus Leidy p. 426 |
| 1904 | Phocageneus Palmer p. 533 |
| 1987 | Phocageneus Muizon p. 13 |
| 1988 | Phocageneus Carroll |
| 1994 | Phocageneus Gottfried et al. p. 233 |
| 1994 | Phocageneus Muizon p. 136 |
| 1997 | Phocageneus McKenna and Bell p. 371 |
| 2001 | Phocageneus Fordyce and de Muizon p. 178 |
| 2002 | Phocageneus Sepkoski |
| 2003 | Phocageneus Geisler and Sanders p. 28 |
| 2008 | Phocageneus Uhen et al. p. 582 |
| 2008 | Phocageneus Whitmore and Kaltenbach p. 189 |
| 2013 | Phocageneus Bianucci et al. p. 744 figs. Figure 3 |
| 2014 | Phocageneus Lambert et al. p. 989 |
| 2015 | Phocageneus Bianucci et al. |
| 2016 | Phocageneus Marx et al. p. 126 |
| 2017 | Phocageneus Godfrey et al. |
| 2018 | Phocageneus Bianucci et al. p. 4 |
| 2018 | Phocageneus Kimura p. 4 figs. Fig. 4 |
| 2018 | Phocageneus Nelson and Uhen |
| 2023 | Phocageneus Godfrey and Lambert p. 72 |
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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 | |
|---|---|---|
| M. D. Uhen et al. 2008 | Crown conical, compressed, oval in section at base, and moderately curved. It forms an acute ridge before and behind, and has an acute point. The base is conspicuously swollen internally, and contracts all around towards the neck. The anterior acute border of the crown expands in a triangular surface of the swollen base. The posterior border is embraced by an attempt to form a basal cingulum. The enamel of the crown is nearly uniformly corrugated, and the wrinkles are much interrupted. The root, broken at its point, has been about twice the length of the crown, is conical, slightly curved, and feebly gibbous (Leidy, 1869). |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| Reference: Uhen 2004 | |||||
Age range: base of the Burdigalian to the top of the Serravallian or 20.44000 to 11.62000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burdigalian | USA (Delaware) | P. venustus (18579) | |
| Burdigalian | USA (Maryland) | P. venustus (45511) | |
| Serravallian | USA (Virginia) | P. venustus (57114) |