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Taxonomy
Leptonychotes was named by Gill (1872). It is extant.
It was reranked as Ogmorhinus (Leptonychotes) by Trouessart (1898), Trouessart (1904) and Friant (1947).
It was assigned to Ogmorhinus by Trouessart (1904); to Ogmorhininae by Turner (1912); to Ogmorhinus by Trouessart (1898) and Friant (1947); to Monachinae by Burns and Fay (1970), Riedman (1990), Berta (2002), Deméré et al. (2003), Berta (2009) and Berta (2018); and to Lobodontini by Scheffer and Rice (1963), Stirling (1971), Muizon (1981), Koretsky (2001), Davis et al. (2004), Fulton and Strobeck (2010), Berta et al. (2018) and Kienle and Berta (2019).
It was reranked as Ogmorhinus (Leptonychotes) by Trouessart (1898), Trouessart (1904) and Friant (1947).
It was assigned to Ogmorhinus by Trouessart (1904); to Ogmorhininae by Turner (1912); to Ogmorhinus by Trouessart (1898) and Friant (1947); to Monachinae by Burns and Fay (1970), Riedman (1990), Berta (2002), Deméré et al. (2003), Berta (2009) and Berta (2018); and to Lobodontini by Scheffer and Rice (1963), Stirling (1971), Muizon (1981), Koretsky (2001), Davis et al. (2004), Fulton and Strobeck (2010), Berta et al. (2018) and Kienle and Berta (2019).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1837 | Leptonyx Gray p. 582 |
| 1850 | Leptonyx Gray p. 14 |
| 1866 | Leptonyx Gill p. 6 |
| 1866 | Leptonyx Gray |
| 1871 | Leptonyx Gray p. 4 |
| 1872 | Leptonychotes Gill p. 70 |
| 1891 | Poecilophoca Lydekker |
| 1891 | Peocilophoca Lydekker p. 605 |
| 1898 | Ogmorhinus (Leptonychotes) Trouessart p. 380 |
| 1904 | Ogmorhinus (Leptonychotes) Trouessart p. 284 |
| 1912 | Leptonychotes Turner p. 200 |
| 1947 | Ogmorhinus (Leptonychotes) Friant p. 6 |
| 1963 | Leptonychotes Scheffer and Rice p. 4 |
| 1970 | Leptonychotes Burns and Fay p. 380 |
| 1971 | Leptonychotes Stirling p. 1 |
| 1981 | Leptonychotes Muizon p. 135 |
| 1990 | Leptonychotes Riedman p. 57 figs. Table 2 |
| 2001 | Leptonychotes Koretsky p. 87 |
| 2002 | Leptonychotes Berta p. 923 |
| 2003 | Leptonychotes Deméré et al. p. 49 figs. Fig. 3.3 |
| 2004 | Leptonychotes Davis et al. p. 365 |
| 2009 | Leptonychotes Berta p. 863 |
| 2010 | Leptonychotes Fulton and Strobeck p. 817 figs. Figure 1 |
| 2018 | Leptonychotes Berta p. 715 figs. Fig. 3C |
| 2018 | Leptonychotes Berta et al. p. 210 figs. Fig. 2 |
| 2019 | Leptonychotes Kienle and Berta |
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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. Leptonychotes Gill 1872 [Weddell seal]
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Leptonychotes weddellii Lesson 1826
Invalid names: Leptonyx Gray 1837 [synonym], Peocilophoca Lydekker 1891 [synonym], Poecilophoca Lydekker 1891 [synonym]
Diagnosis
No diagnoses are available
Measurements
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| Source: f = family, c = class, uc = unranked clade | |||||
| References: Nowak 1991, Hendy et al. 2009, Gingerich 2003, Carreño and Cronin 1993 | |||||
Age range
Maximum range based only on fossils: Holocene or 0.01170 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 0.0 Ma
Minimum age of oldest fossil (stem group age): 0.0 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Holocene | Antarctica | Leptonychotes weddelli (177180 215322) Leptonychotes weddellii (90111) |