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Sphenoceramus gilli
Taxonomy
Sphenoceramus gilli was named by Walaszczyk and Cobban (2006). It is not extant. Its type locality is USGS D3629, which is in a Santonian marine sandstone in the Virgelle Sandstone Formation of Montana.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Sphenoceramus gilli Walaszczyk and Cobban |
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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.
†Sphenoceramus gilli Walaszczyk and Cobban 2006
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, subc = subclass, c = class | |||||
| References: Aberhan et al. 2004, Eaton 1871 | |||||
Age range: Late/Upper Santonian or 85.80000 to 83.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Santonian | USA (Montana) | Sphenoceramus gilli (type locality: 100168) |