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Pyramidathyris
Taxonomy
Pyramidathyris was named by Hu (1983) [Sepkoski's age data: P l Sepkoski's reference number: 881]. Its type is Pyramidathyris aliensis.
It was assigned to Spiriferida by Sepkoski (2002); and to Licharewiidae by Williams et al. (2006).
It was assigned to Spiriferida by Sepkoski (2002); and to Licharewiidae by Williams et al. (2006).
Species
P. aliensis (type species)
Entered
by J. Sepkoski on 2003-01-23; modified by M. Clapham on 2013-10-27
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Pyramidathyris Hu p. 106 |
| 2002 | Pyramidathyris Sepkoski |
| 2006 | Pyramidathyris Williams et al. p. 1908 |
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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 | 3 | 15.9 | 13.0 | 18.2 | 17.0 | 2.72 |
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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: Artinskian or 290.10000 to 283.30000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | China (Xizang) | P. aliensis (82295) | |
| Artinskian | China (Yunnan) | P. sp. (117762) |