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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Xizispirifer
Taxonomy
Xizispirifer was named by Liang (1990). Its type is Xizispirifer zhejiangensis.
It was assigned to Pterospiriferinae by Liang (1990) and Williams et al. (2006).
It was assigned to Pterospiriferinae by Liang (1990) and Williams et al. (2006).
Species
X. zhejiangensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1990 | Xizispirifer Liang p. 322 |
| 2006 | Xizispirifer Williams et al. p. 1818 |
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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.
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 12.8 | 11.0 | 15.0 | 13.0 | 2.83 |
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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: Capitanian or 264.28000 to 259.51000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Capitanian | China (Zhejiang) | X. zhejiangensis (95519) |