| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Janiceps papilio
Taxonomy
Spirigera papilio was named by Stache (1878).
It was recombined as Janiceps papilio by Posenato (2001).
It was recombined as Janiceps papilio by Posenato (2001).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1878 | Spirigera aquilina Stache |
| 1878 | Spirigera papilio Stache |
| 2001 | Janiceps papilio Posenato p. 213 figs. Pl 3, figs 1-5; text-fig 9 |
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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.
†Janiceps papilio Stache 1878
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Invalid names: Spirigera aquilina Stache 1878 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 13.6 | 9.00 | 18.8 | 14.5 | 3.67 | |
| valve height | 4 | 8.30 | 4.20 | 12.0 | 9.70 | 3.32 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: Changhsingian or 254.17000 to 252.17000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Changhsingian | Italy | Janiceps papilio (101912 101933 116437 116439) |