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Guttulina problema
Taxonomy
Polymorphina problema was named by d'Orbigny (1826). It is extant.
It was recombined as Guttulina problema by Sullivan (1962), Bertels (1964) and Mailhe et al. (1967).
It was recombined as Guttulina problema by Sullivan (1962), Bertels (1964) and Mailhe et al. (1967).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1826 | Polymorphina problema d'Orbigny |
1962 | Guttulina problema Sullivan p. 267 figs. Pl 11, figs 9a,b,c |
1964 | Guttulina problema Bertels p. 149 |
1967 | Guttulina problema Mailhe et al. p. 26 |
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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.
Guttulina problema d'Orbigny 1826
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Diagnosis
No diagnoses are available