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Cyclothyris astieriana
Taxonomy
Rhynchonella astieriana was named by d'Orbigny (1847).
It was recombined as Cyclothyris astieriana by Smirnova (1975).
It was recombined as Cyclothyris astieriana by Smirnova (1975).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1847 | Rhynchonella astieriana d'Orbigny pp. 14-15 figs. Pl. 492, Fig. 1-4 |
| 1849 | Rhynchonella astieriana d'Orbigny |
| 1975 | Cyclothyris astieriana Smirnova p. 116 figs. Pl. 1, Fig. 1a-d |
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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.
†Cyclothyris astieriana d'Orbigny 1847
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| height | 4 | 12.1 | 9.00 | 14.0 | 13.1 | 2.24 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Early/Lower Tithonian to the top of the Late/Upper Tithonian or 149.20000 to 143.10000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Tithonian | Germany (Baden-Wurttemberg) | Rhynchonella astieriana (23902) | |
| Late/Upper Tithonian | Poland | Cyclothyris astieriana (160383) |