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Calliostoma rhombotum
Taxonomy
Calliostoma rhombotum was named by Mansfield (1925) [DISTRIBUTION: Miocene; Trinidad and Tobago.]. Its type specimen is USNM 352689, a shell, and it is not a trace fossil. Its type locality is USGS 9212, which is in a Miocene marine siliciclastic in Trinidad and Tobago.
Sister species lacking formal opinion data
C. bella, C. caribbeanum, C. depressa, C. deshayesi, C. doliarum, C. dryope, C. etchegoinense, C. interruptum, C. kleppi, C. mapucherum, C. nicolum, C. nudum, C. papilla, C. poppelacki, C. silicatum, C. singunese, C. sinistrorsum, C. styricum, C. subexcavata, C. tauromiliare, C. yucatecanum, C. zonamesta, C. laureatum, C. kikaianum, C. striphna, C. covacevichi, C. ikebei
Synonymy list
| Year | Name and author |
|---|---|
| 1925 | Calliostoma rhombotum Mansfield p. 59 figs. pl. 8, figs. 4, 8 |
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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.
†Calliostoma rhombotum Mansfield 1925
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class | |||||
| References: Abbott and Dance 1986, Kiessling 2004 | |||||
Age range: Middle Miocene or 15.97000 to 11.60800 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Miocene | Trinidad and Tobago | Calliostoma rhombotum (type locality: 74921) |