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Monotigma
Taxonomy
Monotigma was named by Sowerby (1839) [Gray in G.B. Sowerby, 1839]. It is extant.
It was reranked as Pyramidella (Monotigma) by Harris and Palmer (1947).
It was assigned to Gastropoda by Gray (1847); to Pyramidella by Harris and Palmer (1947); and to Amathinidae by Lozouet et al. (2001).
It was reranked as Pyramidella (Monotigma) by Harris and Palmer (1947).
It was assigned to Gastropoda by Gray (1847); to Pyramidella by Harris and Palmer (1947); and to Amathinidae by Lozouet et al. (2001).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1839 | Monotigma Sowerby |
| 1847 | Monotygma Gray |
| 1947 | Pyramidella (Monotigma) Harris and Palmer p. 225 |
| 2001 | Monotigma Lozouet et al. p. 77 |
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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. Monotigma Sowerby 1839
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, superf = superfamily, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: Aquitanian or 23.04000 to 20.45000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aquitanian | France | M. merignacensis (74861) |