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Polymesoda trigalensis
Taxonomy
Polymesoda trigalensis was named by Olsson (1931). Its type locality is Punta Bravo Grits - Trigal, Boca Pan Valley, which is in an Oligocene marine sandstone/conglomerate in the Mancora Formation of Peru.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Polymesoda trigalensis Olsson p. 46 figs. Plate 7, Figs. 3, 6, 11 |
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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.
†Polymesoda trigalensis Olsson 1931
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Aberhan et al. 2004, Sanchez Roig 1926, Todd 2001 | |||||
Age range: Early/Lower Oligocene or 33.90000 to 28.40000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Oligocene | Peru (Piura) | Cyrena trigalensis (type locality: 55439) |