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Cylichnina petrosa
Taxonomy
Bullina petrosa was named by Conrad (1848).
It was recombined as Haminea petrosa by Dall (1909); it was recombined as Cylichna petrosa by Grant, IV and Gale (1931), Etherington (1931); it was recombined as Cylichnina petrosa by Moore (1963).
It was recombined as Haminea petrosa by Dall (1909); it was recombined as Cylichna petrosa by Grant, IV and Gale (1931), Etherington (1931); it was recombined as Cylichnina petrosa by Moore (1963).
Sister species lacking formal opinion data
C. caillati, C. conulus, C. elongata, C. melitopolitana, C. subangistoma, C. sulcata, C. tantilia, Retusa adamsi, Retusa adamski, Retusa arcana, Retusa bastropensis, Retusa clathrata, Retusa elongata, Retusa emoryi, Retusa kellogii, Retusa minuta, Retusa notata, Retusa notata, Retusa praemoryi, Retusa quercinensis, Retusa quercinensis, Retusa quercinensis, Retusa subangistoma, Retusa sylvaerupis
Synonymy list
| Year | Name and author |
|---|---|
| 1848 | Bullina petrosa Conrad p. 433 figs. Figure 11 |
| 1909 | Haminea petrosa Dall p. 23 |
| 1931 | Cylichna petrosa Etherington p. 114 figs. Plate 14, figure 13 |
| 1931 | Cylichna petrosa Grant, IV and Gale p. 454 |
| 1963 | Cylichnina petrosa Moore p. 49 figs. Plate 8, figures 6, 7 |
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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.
†Cylichnina petrosa Conrad 1848
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: base of the Burdigalian to the top of the Langhian or 20.45000 to 13.82000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burdigalian | USA (Oregon) | Cylichnina petrosa (39805) | |
| Burdigalian - Langhian | USA (Oregon) | Cylichnina petrosa (39591 39595) | |
| Langhian | USA (Oregon) | Cylichnina petrosa (39600 39798 39799 39803 39804 201690) |