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Cheirocystis anatiformis
Taxonomy
Echinoencrinites anatiformis was named by Hall (1847). It is the type species of Cheirocystis.
It was recombined as Cheirocrinus anatiformis by Clark (1919); it was recombined as Cheirocystis anatiformis by Paul (1972) and Liu et al. (2024).
It was recombined as Cheirocrinus anatiformis by Clark (1919); it was recombined as Cheirocystis anatiformis by Paul (1972) and Liu et al. (2024).
Synonymy list
| Year | Name and author |
|---|---|
| 1847 | Echinoencrinites anatiformis Hall p. 89 figs. pl. 29, figs. 4a-f |
| 1919 | Cheirocrinus anatiformis Clark p. 10 figs. pl. 1, fig. 17 |
| 1972 | Cheirocystis anatiformis Paul p. 36 |
| 2024 | Cheirocystis anatiformis Liu et al. p. 1508 |
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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.
†Cheirocystis anatiformis Hall 1847
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: Chatfieldian or 453.80000 to 451.00000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Mohawkian | USA (New York) | Cheirocrinus anatiformis (104604 104607 104619) | |
| Chatfieldian | USA (New York) | Cheirocrinus anatiformis (432) |