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Planicollonia
Taxonomy
Planicollonia is a genus. It is not extant.
It was assigned to Crossostomatidae by Conti and Szabó (1987); and to Archaeogastropoda by Sepkoski (2002).
It was assigned to Crossostomatidae by Conti and Szabó (1987); and to Archaeogastropoda by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1987 | Planicollonia Conti and Szabó p. 57 |
| 2002 | Planicollonia Sepkoski |
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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. †Planicollonia
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: superf = superfamily, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: base of the Middle Aalenian to the top of the Bajocian or 174.70000 to 168.20000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Aalenian | Italy (Central Italy ) | P. macrostoma (123679) | |
| Bajocian | Italy (Central Italy ) | P. macrostoma (123681) |