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Leptonysson
Taxonomy
Leptonysson was named by Van Valen (1967). Its type is Leptonysson basiliscus.
It was assigned to Procerberinae by Van Valen (1967); to Leptictidae by McKenna and Bell (1997); and to Pantolestidae by Secord (2008).
It was assigned to Procerberinae by Van Valen (1967); to Leptictidae by McKenna and Bell (1997); and to Pantolestidae by Secord (2008).
Species
L. basiliscus (type species), L. orthius
Synonymy list
| Year | Name and author |
|---|---|
| 1967 | Leptonysson Van Valen |
| 1997 | Leptonysson McKenna and Bell |
| 2008 | Leptonysson Secord |
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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. †Leptonysson Van Valen 1967
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†Leptonysson basiliscus Van Valen 1967
†Leptonysson orthius Secord 2008
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class, subp = subphylum | |||||
| References: Ji et al. 2002, Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Torrejonian to the top of the Tiffanian or 63.80000 to 56.20000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Torrejonian | USA (Montana) | L. basiliscus (14906) | |
| Tiffanian | USA (Wyoming) | L. orthius (15017) | |
| Late/Upper Paleocene | USA (Wyoming) | L. orthius (15024) |