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Taxonomy
Scaldicetus shigensis was named by Hirota and Barnes (1995) [Shiga-mura Fossil Museum]. Its type specimen is SFM-00001, a skeleton, and it is a 3D body fossil. Its type locality is Hofuku-ji River, which is in a Langhian marine horizon in the Bessho Formation of Japan. It was considered monophyletic by Kimura et al. (2006).
It was recombined as Naganocetus shigensis by Bianucci and Landini (2006); it was recombined as Brygmophyseter shigensis by Kimura et al. (2006), Kohno et al. (2007), Lambert et al. (2008), Velez-Juarbe et al. (2015).
It was recombined as Naganocetus shigensis by Bianucci and Landini (2006); it was recombined as Brygmophyseter shigensis by Kimura et al. (2006), Kohno et al. (2007), Lambert et al. (2008), Velez-Juarbe et al. (2015).
Synonymy list
| Year | Name and author |
|---|---|
| 1995 | Scaldicetus shigensis Hirota and Barnes p. 456 figs. Fig. 5-17 |
| 2002 | Scaldicetus shigensis Kazár p. 163 |
| 2006 | Naganocetus shigensis Bianucci and Landini p. 105 figs. Table 1 |
| 2006 | Scaldicetus shigensis Hampe p. 76 |
| 2006 | Brygmophyseter shigensis Kimura et al. p. 6 |
| 2007 | Brygmophyseter shigensis Kohno et al. p. 9 |
| 2008 | Brygmophyseter shigensis Lambert et al. p. 362 |
| 2015 | Brygmophyseter shigensis Velez-Juarbe et al. p. 15 figs. Fig. 10 |
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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.
†Brygmophyseter shigensis Hirota and Barnes 1995
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| K. Hirota and L. G. Barnes 1995 | A species of Physeteridae in the genus Scaldicetus differing from all other Physeteridae by having the following combination of characters: a t least 11 teeth, and probably 12, in each dentary, and probably a similar number of functional upper teeth in each side of the palate, maxillae formed into crests along lateral margins anterior to antorbital notches, a very small right naris, orbits located anterior to end of zygomatic process of squamosal, temporal fossae large, occipital shield emarginated by temporal fossa, nuchal crest relatively low and broad; shaft of ulna expanded distally with posterior projection a t distal end. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| Reference: Uhen 2004 | |||||
Age range: base of the Langhian to the top of the Serravallian or 15.98000 to 11.63000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Langhian | Japan (Nagano) | Scaldicetus shigensis (type locality: 57775) | |
| Serravallian | Japan (Nagano) | Brygmophyseter shigensis (220341) |