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Remingtonocetus
Taxonomy
Remingtonocetus was named by Kumar and Sahni (1986) [Sepkoski's age data: T Eo-m-l Sepkoski's reference number: 1022]. It is not extant. It was considered monophyletic by Uhen et al. (2011).
It was assigned to Cetacea by Sepkoski (2002); to Remingtonocetinae by Thewissen and Bajpai (2009), Bajpai et al. (2011), Cooper et al. (2014) and Marx et al. (2016); and to Remingtonocetidae by Kumar and Sahni (1986), Gingerich and Russell (1990), Benton (1993), Thewissen et al. (1996), McKenna and Bell (1997), Bajpai and Thewissen (1998), Williams (1998), Thewissen et al. (2001), Gingerich et al. (2001), Geisler and Sanders (2003), van Vliet (2004), McLeod and Barnes (2008), Uhen et al. (2011), Gingerich (2012), Bebej et al. (2015), Gao and Ni (2015), Berta (2017) and Chakraborty and Sengupta (2023).
It was assigned to Cetacea by Sepkoski (2002); to Remingtonocetinae by Thewissen and Bajpai (2009), Bajpai et al. (2011), Cooper et al. (2014) and Marx et al. (2016); and to Remingtonocetidae by Kumar and Sahni (1986), Gingerich and Russell (1990), Benton (1993), Thewissen et al. (1996), McKenna and Bell (1997), Bajpai and Thewissen (1998), Williams (1998), Thewissen et al. (2001), Gingerich et al. (2001), Geisler and Sanders (2003), van Vliet (2004), McLeod and Barnes (2008), Uhen et al. (2011), Gingerich (2012), Bebej et al. (2015), Gao and Ni (2015), Berta (2017) and Chakraborty and Sengupta (2023).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1986 | Remingtonocetus Kumar and Sahni p. 320 |
| 1990 | Remingtonocetus Gingerich and Russell p. 18 |
| 1993 | Remingtonocetus Benton p. 761 |
| 1996 | Remingtonocetus Thewissen et al. p. 71 figs. Figure 31 |
| 1997 | Remingtonocetus McKenna and Bell p. 370 |
| 1998 | Remingtonocetus Bajpai and Thewissen p. 215 |
| 1998 | Remingtonocetus Williams p. 7 |
| 2001 | Remingtonocetus Gingerich et al. |
| 2001 | Remingtonocetus Thewissen et al. p. 351 figs. Table 1 |
| 2002 | Remingtonocetus Sepkoski |
| 2003 | Remingtonocetus Geisler and Sanders p. 27 |
| 2004 | Remingtonocetus van Vliet p. 143 |
| 2008 | Remingtonocetus McLeod and Barnes p. 93 |
| 2009 | Remingtonocetus Thewissen and Bajpai p. 657 |
| 2011 | Remingtonocetus Bajpai et al. p. 703 |
| 2011 | Remingtonocetus Uhen et al. p. 966 figs. Figure 10 |
| 2012 | Remingtonocetus Gingerich p. 313 figs. Figure 4 |
| 2014 | Remingtonocetus Cooper et al. p. 104 |
| 2015 | Remingtonocetus Bebej et al. |
| 2015 | Remingtonocetus Gao and Ni p. 156 figs. Table 1 |
| 2016 | Remingtonocetus Marx et al. p. 99 |
| 2017 | Remingtonocetus Berta p. 159 |
| 2023 | Remingtonocetus Chakraborty and Sengupta p. 515 |
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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.
G. †Remingtonocetus Kumar and Sahni 1986
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†Remingtonocetus domandaensis Gingerich et al. 2001
†Remingtonocetus harudiensis Sahni and Mishra 1975
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. Chakraborty and D. P. Sengupta 2023 | Long, narrow and elongated skull, mandibular symphysis extending up to P4 (i.e., the fourth premolar; in Andrewsiphius, the symphysis extends up to the second molar or further), constant depth of rami from P1-P4 (in Andrewsiphius it increases posteriorly), a narrow and elongated facial region with elongated nasal bones and reduced frontals (Kumar and Sahni, 1986). Remingtonoce- tus differs from most other cetaceans of Eocene by the long narrow rostrum, large auditory bullae and post-orbital fossa (Bajpai et al., 2011). They also have small orbits pos- terior to M3, large auditory bullae, and a fully ossified nasopharyngeal duct that extends to the ears (Bajpai et al., 2011). |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Uhen 2004 | |||||
Age range: Lutetian or 47.80000 to 41.30000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lutetian | India | R. harudiensis (181249) | |
| Lutetian | Pakistan (Baluchistan) | R. domandaensis (45623) | |
| Lutetian | India (Gujarat) | R. harudiensis (230924) | |
| Lutetian | Pakistan (Balochistan) | R. domandaensis (28938 127196) | |
| Lutetian | Pakistan (Punjab) | Indocetus ramani (28975) | |
| Lutetian | India (Kutch) | Protocetus harudiensis (45590) |