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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Cyrtodontula dubia
Taxonomy
Cyrtodontula dubia was named by Soot-Ryen and Soot-Ryen (1960) [DISTRIBUTION: Middle Ordovician; Norway.]. Its type specimen is P.M.O. 7254, a shell, and it is not a trace fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1960 | Cyrtodontula dubia Soot-Ryen and Soot-Ryen p. 95 figs. pl. 2, figs. 18-20 |
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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.
†Cyrtodontula dubia Soot-Ryen and Soot-Ryen 1960
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009 | |||||
Age range: base of the Costonian to the top of the Pusgillian or 458.40000 to 449.20000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Costonian - Pusgillian | Norway (Ringerike) | Cyrtodontula dubia (194660) |