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Loxolophus spiekeri
Taxonomy
Protogonodon spiekeri was named by Gazin (1938) [original combination not certain; this is a guess based on discussion of Williamson 1996]. Its type locality is Dragon Canyon, which is in a Torrejonian terrestrial horizon in the North Horn Formation of Utah.
It was recombined as Loxolophus spiekeri by Van Valen (1978), Williamson (1996).
It was recombined as Loxolophus spiekeri by Van Valen (1978), Williamson (1996).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1938 | Protogonodon spiekeri Gazin |
| 1941 | Protogonodon spiekeri Gazin pp. 17 - 18 figs. Figure 9 |
| 1941 | Protogonodon biathales Gazin pp. 19 - 20 figs. Figure 10 |
| 1978 | Loxolophus spiekeri Van Valen |
| 1986 | Loxolophus biathales Robison |
| 1996 | Loxolophus spiekeri Williamson |
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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.
†Loxolophus spiekeri Gazin 1938
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Invalid names: Protogonodon biathales Gazin 1941 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Archibald 1998, Lillegraven 1979, Hendy et al. 2009, Ji et al. 2002 | |||||
Age range: base of the Puercan to the top of the Torrejonian or 66.00000 to 60.90000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Puercan | USA (Utah) | Loxolophus spiekeri (14692) | |
| Torrejonian | USA (Utah) | Protogonodon spiekeri (type locality: 14830) |