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Pachyaena
Taxonomy
Pachyaena was named by Cope (1874). It is not extant. Its type is Pachyaena ossifraga.
It was synonymized subjectively with Mesonyx by Cope (1884).
It was assigned to Mesonychinae by Szalay and Gould (1966) and Zhou et al. (1995); and to Mesonychidae by Cope (1874), Scott (1892), Osborn and Wortman (1892), Hay (1902), Matthew (1909), Hay (1930), Carroll (1988), O'Leary and Rose (1995), McKenna and Bell (1997), Gingerich (1998), Archibald (1998), Thewissen et al. (2001) and Solé et al. (2018).
It was synonymized subjectively with Mesonyx by Cope (1884).
It was assigned to Mesonychinae by Szalay and Gould (1966) and Zhou et al. (1995); and to Mesonychidae by Cope (1874), Scott (1892), Osborn and Wortman (1892), Hay (1902), Matthew (1909), Hay (1930), Carroll (1988), O'Leary and Rose (1995), McKenna and Bell (1997), Gingerich (1998), Archibald (1998), Thewissen et al. (2001) and Solé et al. (2018).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1874 | Pachyaena Cope |
| 1892 | Pachyaena Osborn and Wortman |
| 1892 | Pachyaena Scott p. 304 |
| 1902 | Pachyaena Hay p. 749 |
| 1909 | Pachyaena Matthew |
| 1930 | Pachyaena Hay p. 467 |
| 1966 | Pachyaena Szalay and Gould p. 134 |
| 1988 | Pachyaena Carroll |
| 1995 | Pachyaena O'Leary and Rose |
| 1995 | Pachyaena Zhou et al. p. 397 |
| 1997 | Pachyaena McKenna and Bell p. 367 |
| 1998 | Pachyaena Archibald |
| 1998 | Pachyaena Gingerich p. 427 figs. FIgure 1 |
| 2001 | Pachyaena Thewissen et al. p. suppl. |
| 2018 | Pachyaena Solé 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. †Pachyaena Cope 1874
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†Pachyaena gigantea Osborn and Wortman 1892
†Pachyaena gracilis Matthew and Granger 1915
†Pachyaena nemegetica Dashzeveg 1976
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988, Ji et al. 2002, Archibald 1998, Lillegraven 1979 | |||||
Age range: base of the Middle Paleocene to the top of the Middle Eocene or 61.70000 to 37.71000 Ma
Collections (71 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Paleocene | China (Guangdong) | P. sp. (176606 180650) | |
| Tiffanian | USA (Wyoming) | P. sp. (15017) | |
| Late/Upper Paleocene | Mongolia | P. sp. (133398) | |
| Late/Upper Paleocene | China (Nei Mongol) | P. sp. (133389) | |
| Ypresian | United Kingdom (England) | P. ossifraga (38868) | |
| Ypresian | France (Île-de-France) | P. gracilis (68437) | |
| Ypresian | France | P. gigantea (197267) | |
| Wasatchian | USA (Wyoming) | P. gigantea (15530 46809 109254) P. gigantea, P. gracilis (46792) P. gigantea, P. ossifraga (15531 46846) P. gracilis (15491 15589 15592 15697 15702 15889 46639 46683 46699 46720 46782 46801 46839 109255) P. gracilis, P. ossifraga (15510) P. ossifraga (15455 15505 15507 15514 15518 15522 15524 15532 15536 15694 15704 15707 15831 46659 46690 46731 46733 46759 46768 46808) P. sp. (15710 15756 15793 46662 46667 46709 46773 46789 46799 46814) | |
| Wasatchian | USA (Colorado) | P. ossifraga (15480 15485 15861 15864) P. sp. (15350 15371 15375) | |
| Wasatchian | Canada (Northwest Territories) | P. sp. (15583) | |
| Wasatchian | USA (New Mexico) | P. ossifraga (15452) | |
| Early/Lower Eocene | USA (Wyoming) | P. ossifraga (15709) P. sp. (15690) | |
| Middle Eocene | China (Henan) | P. sp. (46193) |