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Miracinonyx inexpectatus
Taxonomy
Crocuta inexpectata was named by Cope (1895).
It was recombined as Uncia inexpectata by Cope (1899); it was recombined as Felis inexpectatus by Hay (1902); it was recombined as Felis inexpectata by Simpson (1941), Slaughter (1966), Kurtén (1976); it was synonymized subjectively with Acinonyx studeri by Kurten and Anderson (1980); it was considered a nomen dubium by Adams (1979); it was recombined as Miracinonyx inexpectatus by Van Valkenburgh et al. (1990), Morgan and Seymour (1997), Eshelman et al. (2025).
It was recombined as Uncia inexpectata by Cope (1899); it was recombined as Felis inexpectatus by Hay (1902); it was recombined as Felis inexpectata by Simpson (1941), Slaughter (1966), Kurtén (1976); it was synonymized subjectively with Acinonyx studeri by Kurten and Anderson (1980); it was considered a nomen dubium by Adams (1979); it was recombined as Miracinonyx inexpectatus by Van Valkenburgh et al. (1990), Morgan and Seymour (1997), Eshelman et al. (2025).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1895 | Crocuta inexpectata Cope p. 449 |
| 1899 | Uncia inexpectata Cope |
| 1902 | Felis inexpectatus Hay p. 783 |
| 1908 | Felis longicrus Brown |
| 1920 | Smilodontopsis mooreheadi Hay p. 107 figs. Plate 4, figs. 21-22 |
| 1941 | Felis inexpectata Simpson |
| 1966 | Felis inexpectata Slaughter p. 81 |
| 1976 | Felis inexpectata Kurtén |
| 1990 | Miracinonyx inexpectatus Van Valkenburgh et al. p. 436 figs. Figs,. 2, 5, 7 - 10, 12 - 14 |
| 1997 | Miracinonyx inexpectatus Morgan and Seymour |
| 2025 | Miracinonyx inexpectatus Eshelman et al. p. 140 |
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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.
†Miracinonyx inexpectatus Cope 1895
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Invalid names: Felis longicrus Brown 1908 [synonym], Smilodontopsis mooreheadi Hay 1920 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| O. P. Hay 1920 (Smilodontopsis mooreheadi) | Of moderate size. No protocone. Preanterior lobe very small. |
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Nowak 1991, Lillegraven 1979, Carroll 1988, Hendy et al. 2009, Ji et al. 2002 | |||||
Age range: base of the Gelasian to the top of the Rancholabrean or 2.58000 to 0.01400 Ma
Collections (17 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Blancan | USA (Florida) | Miracinonyx inexpectatus (19757 19759) | |
| Gelasian | USA (Florida) | Felis inexpectatus (20384) Miracinonyx inexpectatus (19758) | |
| Early/Lower Pleistocene | USA (South Carolina) | Miracinonyx inexpectatus (80031) | |
| Pleistocene | USA (South Carolina) | Miracinonyx inexpectatus (79950) | |
| Irvingtonian | USA (Pennsylvania) | Felis inexpectatus (20354) | |
| Irvingtonian | USA (South Carolina) | Miracinonyx inexpectatus (79919) | |
| Irvingtonian | USA (Colorado) | Miracinonyx inexpectatus (20150) | |
| Irvingtonian | USA (Maryland) | Felis inexpectata, Felis inexpectatus (20302) | |
| Irvingtonian | USA (West Virginia) | Miracinonyx inexpectatus (20286) | |
| Rancholabrean | USA (Florida) | Miracinonyx inexpectatus (20398) | |
| Late/Upper Pleistocene (glacial) | USA (Florida) | Felis inexpectata (154771) | |
| Late/Upper Pleistocene | USA (Florida) | Felis inexpectata (74292) | |
| Late/Upper Pleistocene | USA (South Carolina) | Miracinonyx inexpectatus (152904) | |
| Late/Upper Pleistocene | USA (Georgia) | Felis inexpectata (13066) | |
| Late/Upper Pleistocene (high glacial) | USA (Texas) | Felis inexpectata (93103) |