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Alphadon
Taxonomy
Alphadon was named by Simpson (1927). Its type is Alphadon marshi.
It was assigned to Didelphodontinae by Simpson (1927) and Simpson (1929); to Thlaeodontinae by Hay (1930); to Didelphinae by Clemens (1979); to Alphadontinae by Johanson (1995); to Didelphidae by Sloan and Van Valen (1965), Lillegraven and McKenna (1986) and McKenna and Bell (1997); to Peradectidae by Goin et al. (2006); to Alphadontidae by Johanson (1996), Kielan-Jaworowska et al. (2004), Davis (2007) and Wilson et al. (2010); and to Metatheria by Williamson et al. (2012).
It was assigned to Didelphodontinae by Simpson (1927) and Simpson (1929); to Thlaeodontinae by Hay (1930); to Didelphinae by Clemens (1979); to Alphadontinae by Johanson (1995); to Didelphidae by Sloan and Van Valen (1965), Lillegraven and McKenna (1986) and McKenna and Bell (1997); to Peradectidae by Goin et al. (2006); to Alphadontidae by Johanson (1996), Kielan-Jaworowska et al. (2004), Davis (2007) and Wilson et al. (2010); and to Metatheria by Williamson et al. (2012).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Alphadon Simpson p. 122 |
| 1929 | Alphadon Simpson pp. 117, 126-127 |
| 1930 | Alphodon Hay p. 391 |
| 1965 | Alphadon Sloan and Van Valen p. 221 |
| 1979 | Alphadon Clemens p. 193 |
| 1986 | Alphadon Lillegraven and McKenna p. 27 |
| 1995 | Alphadon Johanson p. 601 |
| 1996 | Alphadon Johanson p. 1028 |
| 1997 | Alphadon McKenna and Bell |
| 2004 | Alphadon Kielan-Jaworowska et al. pp. 443, 453-454 figs. 12.5B,C, 12.11A |
| 2006 | Alphadon Goin et al. |
| 2007 | Alphadon Davis p. 218 |
| 2010 | Alphadon Wilson et al. p. 513 |
| 2012 | Alphadon Williamson et al. |
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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. †Alphadon Simpson 1927
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†Alphadon attaragos Lillegraven and McKenna 1986
†Alphadon eatoni Cifelli and de Muizon 1998
†Alphadon halleyi Sahni 1972
†Alphadon marshi Simpson 1927
†Alphadon perexiguus Cifelli 1994
†Alphadon sahnii Lillegraven and McKenna 1986
†Alphadon wilsoni Lillegraven 1969
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Hendy et al. 2009, Hopson 1973, Clemens 1979, Carroll 1988 | |||||
Age range: base of the Middle Cenomanian to the top of the Ypresian or 99.60000 to 47.80000 Ma
Collections (93 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Cenomanian - Late/Upper Cenomanian | USA (Utah) | A. sp. (14385) | |
| Santonian | USA (Montana) | A. halleyi (181582) | |
| Late/Upper Santonian - Early/Lower Campanian | USA (Utah) | A. sp. (230871) | |
| Early/Lower Campanian | USA (Utah) | A. attaragos, A. sahnii (14430) | |
| Judithian | USA (Montana) | A. halleyi (14453) | |
| Judithian | Canada (Alberta) | A. halleyi (14451) | |
| Judithian | USA (Texas) | A. halleyi, A. perexiguus (14489) A. sp., A. halleyi (14488) | |
| Judithian | USA (New Mexico) | A. sp., A. wilsoni (14464) | |
| Judithian | USA (Wyoming) | A. attaragos, A. halleyi (14487) A. halleyi (14433 14458 14465) A. sahnii (14439 14440 14479 14480) | |
| Judithian | USA (Utah) | A. attaragos, A. sp. (14467) A. attaragos, A. wilsoni (14474 14475) | |
| Late/Upper Campanian | USA (New Mexico) | A. marshi (36542) A. sp. (54101 56622 56627) A. sp., A. marshi (14498) A. sp., A. wilsoni (14436) | |
| Late/Upper Campanian | USA (Wyoming) | A. sahnii (70269 70453) | |
| Late/Upper Campanian | USA (Utah) | A. halleyi (75836) A. halleyi, A. sahnii (14466) | |
| Middle Campanian | USA (Utah) | A. sp. (61844) | |
| Middle Campanian | USA (Montana) | A. halleyi (14482) | |
| Middle Campanian - Late/Upper Campanian | USA (Montana) | A. attaragos, A. halleyi (14446) A. halleyi (14450 14459 14468 14470 14491 69161) A. sp. (14490) A. sp., A. halleyi (14461) | |
| Middle Campanian - Late/Upper Campanian | Canada (Saskatchewan) | A. halleyi (14494) | |
| Middle Campanian - Late/Upper Campanian | USA (Texas) | A. halleyi (68001) A. sp. (68003 68006 212186) | |
| Maastrichtian | Portugal (Coimbra) | A. sp. (49276) | |
| Edmontonian | USA (New Mexico) | A. halleyi, A. wilsoni (14496) | |
| Lancian | Canada (Saskatchewan) | A. sp. (14655) | |
| Lancian | USA (New Mexico) | A. marshi (14573 14619) | |
| Lancian | USA (Utah) | A. eatoni (14603) A. sp. (14599) | |
| Lancian | USA (South Dakota) | A. marshi (14604 14612) | |
| Lancian | Canada (Alberta) | A. marshi (14632 14634) A. marshi, A. wilsoni (14630) A. wilsoni (14631) | |
| Lancian | USA (Montana) | A. marshi (14516 14533 14535 14536 14546 14548 14549 14582 14616 14639 172642) A. marshi, A. wilsoni (14624 172644) A. sp. (14508 14556 14583) A. wilsoni (14617 14618 14649) | |
| Lancian | USA (Wyoming) | A. marshi (14514 14519 14526 14538 14566 14596 14598) | |
| Late/Upper Maastrichtian | USA (Wyoming) | A. marshi (14585) | |
| Late/Upper Maastrichtian | USA (Montana) | A. sp. (55326) | |
| Late/Upper Maastrichtian | USA (North Dakota) | A. marshi (45099) A. sp. (45137) | |
| Late/Upper Maastrichtian | USA (New Mexico) | A. marshi (154429 154616) | |
| Late/Upper Maastrichtian | Canada (Saskatchewan) | A. sp. (54105) | |
| Ypresian | Algeria | A. sp. (71984) |