| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Crania reversa was named by Sardeson (1896).
It was recombined as Petrocrania reversa by Sloan et al. (1987).
It was recombined as Petrocrania reversa by Sloan et al. (1987).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1896 | Crania reversa Sardeson p. 77 figs. pl. 3 f. 6-7 |
| 1987 | Petrocrania reversa Sloan et al. |
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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.
†Petrocrania reversa Sardeson 1896
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, o = order, c = class | |||||
| References: Williams et al. 1996, Aberhan et al. 2004, Hendy 2009 | |||||
Age range: Blackriveran or 457.30000 to 449.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Blackriveran | USA (Minnesota) | Crania reversa (23081) |