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Behemotops
Taxonomy
Behemotops was named by Domning et al. (1986) [Sepkoski's age data: T Ol-u]. It was considered monophyletic by Beatty (2009).
It was assigned to Desmostylidae by Carroll (1988) and McKenna and Bell (1997); to Behemotopsidae by Inuzuka et al. (1995) and Beatty (2009); to Behemotopsinae by Barnes (2013); to Paleoparadoxiidae by Inuzuka (2000), Barnes and Goedert (2001) and Domning (2018); to Desmostylia by Cooper et al. (2014), Matsui (2017), Berta (2017) and Matsui and Tsuihiji (2019); and to Desmostylia by Ray et al. (1994), Domning (1996), Sepkoski (2002), Domning (2008), Beatty and Cockburn (2015) and Beatty (2023).
It was assigned to Desmostylidae by Carroll (1988) and McKenna and Bell (1997); to Behemotopsidae by Inuzuka et al. (1995) and Beatty (2009); to Behemotopsinae by Barnes (2013); to Paleoparadoxiidae by Inuzuka (2000), Barnes and Goedert (2001) and Domning (2018); to Desmostylia by Cooper et al. (2014), Matsui (2017), Berta (2017) and Matsui and Tsuihiji (2019); and to Desmostylia by Ray et al. (1994), Domning (1996), Sepkoski (2002), Domning (2008), Beatty and Cockburn (2015) and Beatty (2023).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1986 | Behemotops Domning et al. p. 6 figs. Fig. 4-18 |
| 1988 | Behemotops Carroll |
| 1994 | Behemotops Ray et al. p. 205 |
| 1995 | Behemotops Inuzuka et al. p. 524 |
| 1996 | Behemotops Domning p. 394 |
| 1997 | Behemotops McKenna and Bell p. 375 |
| 2000 | Behemotops Inuzuka p. 105 |
| 2001 | Behemotops Barnes and Goedert p. 8 |
| 2002 | Behemotops Sepkoski |
| 2008 | Behemotops Domning p. 642 |
| 2009 | Behemotops Beatty |
| 2013 | Behemotops Barnes p. 56 |
| 2014 | Behemotops Cooper et al. p. 8 |
| 2015 | Behemotops Beatty and Cockburn p. 2 |
| 2017 | Behemotops Berta p. 171 |
| 2017 | Behemotops Matsui p. 4 |
| 2018 | Behemotops Domning p. 251 |
| 2019 | Behemotops Matsui and Tsuihiji p. 11 |
| 2023 | Behemotops Beatty |
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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. †Behemotops Domning et al. 1986
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†Behemotops katsuiei Inuzuka 2000
†Behemotops proteus Domning et al. 1986
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. L. Beatty and T. C. Cockburn 2015 | Dental formula is 3.1.2?.3/3? 1.2?.3. Differs from Cornwallius in: having three pairs of upper incisors; molar cusps not in longitudinal rows, not columnar, and not closely appressed to each other, but are brachydont and retain spaces between them; molars retain labial and lingual cin- gula; upper molars, specifically M3, lack styles/stylids in between the main cusps/cuspids; coronoid process of mandible is more strongly posteriorly inclined. Differs from Paleoparadoxia in: incisors not enlarged and flattened; incisor arch not flat or straight; molar cusps not in longitudinal rows, columnar, or closely appressed to each other; postorbital process of jugal pres- ent, but not articulating with a dorsally expanded zygomatic pro- cess of the squamosal. Differs from Desmostylus in: having three pairs of upper incisors; molars brachydont; postorbital process of jugal not contacting zygomatic process of squamosal because the latter is not dorsoventrally expanded. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Domning et al. 1986 | |||||
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rupelian | USA (Washington) | B. proteus (58964) | |
| Chattian | Canada (British Columbia) | B. proteus (173157) | |
| Chattian | USA (Washington) | B. proteus (45809) | |
| Chattian | Japan (Hokkaido) | B. katsuiei (45786) |