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Desmostylus
Taxonomy
Desmostylus was named by Marsh (1888) [Sepkoski's age data: T Mi-l T Mi-u].
It was assigned to Halitheriidae by Hay (1902) and Palmer (1904); to Halicoridae by Trouessart (1898) and Trouessart (1904); to Desmostyliformes by Hay (1923); to Sirenia by Marsh (1888) and Clark and Arnold (1923); to Sirenia by Zittel (1925); to Desmostylia by Domning et al. (1986), Hasegawa et al. (1995), Domning (1996), Sepkoski (2002) and Domning (2008); to Desmostylia by Berta (2017); and to Desmostylidae by Hay (1915), Hay (1930), Simpson (1932), VanderHoof (1937), Kretzoi (1941), Reinhart (1959), Shikama (1966), Dubrovo and Sinel'nikova (1971), Carroll (1988), Inuzuka et al. (1995), McKenna and Bell (1997), Inuzuka (2000), Barnes and Goedert (2001), Beatty (2009), Boessenecker (2011), Matsui (2017), Domning (2018), Matsui and Tsuihiji (2019) and Matsui and Pyenson (2023).
It was assigned to Halitheriidae by Hay (1902) and Palmer (1904); to Halicoridae by Trouessart (1898) and Trouessart (1904); to Desmostyliformes by Hay (1923); to Sirenia by Marsh (1888) and Clark and Arnold (1923); to Sirenia by Zittel (1925); to Desmostylia by Domning et al. (1986), Hasegawa et al. (1995), Domning (1996), Sepkoski (2002) and Domning (2008); to Desmostylia by Berta (2017); and to Desmostylidae by Hay (1915), Hay (1930), Simpson (1932), VanderHoof (1937), Kretzoi (1941), Reinhart (1959), Shikama (1966), Dubrovo and Sinel'nikova (1971), Carroll (1988), Inuzuka et al. (1995), McKenna and Bell (1997), Inuzuka (2000), Barnes and Goedert (2001), Beatty (2009), Boessenecker (2011), Matsui (2017), Domning (2018), Matsui and Tsuihiji (2019) and Matsui and Pyenson (2023).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1888 | Desmostylus Marsh pp. 94-96 |
| 1898 | Desmostylus Trouessart p. 1006 |
| 1902 | Desmostylus Hay p. 583 |
| 1904 | Desmostylus Palmer p. 224 |
| 1904 | Desmostylus Trouessart p. 751 |
| 1915 | Desmostylus Hay p. 385 |
| 1923 | Desmostylus Clark and Arnold p. 177 |
| 1923 | Desmostylus Hay p. 109 |
| 1925 | Desmostylus Zittel p. 265 |
| 1930 | Desmostylus Hay p. 654 |
| 1932 | Desmostylus Simpson p. 425 |
| 1937 | Desmostylella Nagao |
| 1937 | Desmostylus VanderHoof p. 189 |
| 1941 | Desmostylus Kretzoi p. 155 |
| 1959 | Desmostylus Reinhart p. 65 |
| 1966 | Desmostylus Shikama p. 157 |
| 1971 | Desmostylus Dubrovo and Sinel'nikova p. 671 |
| 1986 | Desmostylus Domning et al. p. 36 figs. Fig. 22 |
| 1988 | Desmostylus Carroll |
| 1995 | Desmostylus Hasegawa et al. p. 5 |
| 1995 | Desmostylus Inuzuka et al. p. 524 |
| 1996 | Desmostylus Domning p. 394 |
| 1997 | Desmostylus McKenna and Bell p. 375 |
| 2000 | Desmostylus Inuzuka p. 93 |
| 2001 | Desmostylus Barnes and Goedert p. 18 |
| 2002 | Desmostylus Sepkoski |
| 2008 | Desmostylus Domning p. 642 |
| 2009 | Desmostylus Beatty |
| 2011 | Desmostylus Boessenecker p. 2 |
| 2017 | Desmostylus Berta p. 171 |
| 2017 | Desmostylus Matsui p. 3 |
| 2018 | Desmostylus Domning p. 251 |
| 2019 | Desmostylus Matsui and Tsuihiji p. 10 |
| 2023 | Desmostylus Matsui and Pyenson p. 4 |
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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. †Desmostylus Marsh 1888
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†Desmostylus hesperus Marsh 1888
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Invalid names: Desmostylella typica Nagao 1937 [synonym], Desmostylus californicus Hay 1923 [synonym], Desmostylus cymatias Hannibal 1922 [synonym], Desmostylus minor Nagao 1937 [synonym], Desmostylus mirabilis Nagao 1935 [synonym], Desmostylus watasei Hay 1915 [synonym]
†Desmostylus japonicus Tokunaga and Iwasaki 1914
Invalid names: Desmostylella Nagao 1937 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Domning et al. 1986 | |||||
Age range: base of the Aquitanian to the top of the Tortonian or 23.03000 to 7.24600 Ma
Collections (105 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Oligocene - Miocene | Japan (Hokkaido) | D. japonicus (91510 91512) | |
| Arikareean | USA (California) | D. hesperus (59072) | |
| Arikareean - Hemingfordian | USA (Oregon) | D. hesperus (90464) | |
| Aquitanian | USA (California) | D. sp., D. hesperus (58899) | |
| Aquitanian | USA (Washington) | Desmostylidae indet. (45481) | |
| Early/Lower Miocene | Japan (Miyagi) | D. japonicus (91519) | |
| Early/Lower Miocene | Japan (Hokkaido) | D. japonicus (91509) | |
| Early/Lower Miocene | Japan (Gihu) | Mammalia indet. (91500) | |
| Early/Lower Miocene | Japan (Fukushima) | D. japonicus (91522) D. sp. (28589) | |
| Early/Lower Miocene | Russian Federation (Sakhalin) | D. japonicus (91503 91504 91505) D. minor (91506) | |
| Miocene | Russian Federation (Sakhalin) | D. japonicus (91501) D. sp. (124918) | |
| Miocene | USA (California) | D. hesperus (91478 91480 91481 91486 91543 234513) D. sp. (91485) | |
| Miocene | Japan (Teshio) | D. japonicus (151921) | |
| Neogene | Japan (Hokkaido) | D. minor (101825) | |
| Burdigalian | Japan (Hokkaido) | D. japonicus (91507) | |
| Burdigalian | USA (Oregon) | D. cymatias (107680) D. hesperus, D. cymatias (60339) D. sp. (18929) | |
| Burdigalian - Langhian | USA (California) | D. hesperus (52180 159670) | |
| Hemingfordian | USA (California) | D. hesperus (59073) | |
| Barstovian | USA (California) | D. hesperus (91533 91534 91538 91539 91540 91541 91545) D. sp. (59074) | |
| Langhian | Mexico (Baja California) | D. sp., D. hesperus (52183) | |
| Langhian | Japan (Toyama) | D. japonicus (118942) | |
| Langhian | Japan (Hokkaido) | D. sp. (55652) | |
| Langhian | Japan (Gunma) | D. japonicus (75729) | |
| Langhian | Japan (Satiama Prevecture) | D. sp. (55826) | |
| Langhian | USA (California) | D. hesperus, D. japonicus (13297) | |
| Langhian - Serravallian | Mexico (Baja California Sur) | D. hesperus (13450) | |
| Langhian - Serravallian | USA (California) | D. hesperus (71072) D. sp. (46069 121152 151009 225314) | |
| Langhian - Serravallian | Russian Federation (Kamchatka) | D. hesperus (59165) | |
| Middle Miocene | Japan (Fukushima) | D. sp. (186476) | |
| Middle Miocene | Japan (Akita) | D. japonicus (91521) | |
| Middle Miocene | USA (California) | D. hesperus (91479 91484 159600 159665 159666 159667 159668 159669 159671 159672) | |
| Middle Miocene | Japan (Hokkaido) | D. japonicus (91508 91511 91513 91514 91515 91516) D. sp. (55921) | |
| Middle Miocene | Russian Federation (Sakhalinskaya) | D. mirabilis (70452) | |
| Middle Miocene | Japan (Ishikawa) | D. japonicus (91524) | |
| Middle Miocene | Russian Federation | D. hesperus (118952) | |
| Middle Miocene | Japan (Nagano) | D. hesperus (75730) | |
| Middle Miocene | Japan (Shimane) | D. sp. (13068 102978) | |
| Middle Miocene | Japan (Iwate) | D. japonicus (91517 91518) D. japonicus, Desmostylella typica (46041) D. sp. (186478) | |
| Serravallian | Mexico (Baja California) | D. sp. (57777) | |
| Serravallian | Japan (Hokkaido) | D. sp. (72262) | |
| Serravallian - Tortonian | USA (California) | D. hesperus (13093 40517 159596 159597 159598 159599 159673) D. sp. (176780) | |
| Tortonian | USA (California) | D. sp. (40514) D. sp., D. hesperus (46070) | |
| Late/Upper Miocene | Japan (Hokkaido) | D. sp. (91625) | |
| Late/Upper Miocene | Japan (Ishikawa) | D. japonicus (53883 91525) | |
| Late/Upper Miocene | Japan (Toyama) | D. japonicus (91523 91526) | |
| Late/Upper Miocene | Japan | D. japonicus (51999 52000 52001) | |
| Late/Upper Miocene | USA (California) | D. sp. (162458) | |
| Late/Upper Miocene | Russian Federation (Sakhalin) | D. japonicus (91502) |