Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Anisonchus willeyi
Taxonomy
Anisonchus willeyi was named by Rigby (1980) [status seriously questioned by Williamson 1996]. Its type locality is Swain Quarry, which is in a Torrejonian terrestrial horizon in the Fort Union Formation of Wyoming.
Synonymy list
Year | Name and author |
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1980 | Anisonchus willeyi Rigby, Jr. |
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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.
†Anisonchus willeyi Rigby, Jr. 1980
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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, Lillegraven 1979, Archibald 1998 |
Age range: Torrejonian or 63.80000 to 60.90000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Torrejonian | USA (Wyoming) | Anisonchus willeyi (type locality: 14886) |