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Cheethamia
Taxonomy
Cheethamia is a genus. It is not extant.
It was assigned to Cheilostomata by Sepkoski (2002); and to Onychocellidae by Koromyslova and Seltser (2020), Håkansson et al. (2024).
It was assigned to Cheilostomata by Sepkoski (2002); and to Onychocellidae by Koromyslova and Seltser (2020), Håkansson et al. (2024).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Cheethamia Sepkoski |
| 2020 | Cheethamia Koromyslova and Seltser p. 701 |
| 2024 | Cheethamia Håkansson et al. p. 36 |
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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. †Cheethamia
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†Cheethamia aktolagayensis Koromyslova et al. 2018
†Cheethamia dividia Håkansson et al. 2024
†Cheethamia volgaensis Koromyslova and Seltser 2020
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class, uc = unranked clade | |||||
| References: Smith et al. 2006, Nesnidal et al. 2013 | |||||
Age range: Early/Lower Maastrichtian or 72.20000 to 66.00000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Maastrichtian | USA (Arkansas) | C. howei (90500) | |
| Early/Lower Maastrichtian | Australia (Western Australia) | C. dividia (235528 235529 235530 235532) | |
| Early/Lower Maastrichtian | Russian Federation (Saratov) | C. aktolagayensis, C. volgaensis (215304) |