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Cassis retusa
Taxonomy
Cassis retusa was named by Michelotti (1861) [DISTRIBUTION: Oligocene; Mediterranean, Somalia.]. It is not a trace fossil.
Sister species lacking formal opinion data
C. abbreviatus, C. achatina, C. ambigua, C. calentica, C. elegans, C. globosa, C. inornatus, C. jameshoubricki, C. mammilaris, C. mombasana, C. nilotica, C. postmamillaris, C. schnirei, C. striata, C. sulcata, C. tessellata, C. testiculus, C. togata, C. umbgrovei, C. undulata, C. postmamillaris, C. salisburyensis, C. saburon, C. strigata
Synonymy list
| Year | Name and author |
|---|---|
| 1861 | Cassis retusa Michelotti p. 133 figs. pl. 13, figs. 9-10 |
| 1958 | Cassis retusa Azzaroli p. 121 |
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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.
†Cassis retusa Michelotti 1861
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: Early/Lower Oligocene or 33.90000 to 27.30000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Oligocene | Somalia | Cassis retusa (79048) |