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Entolium piriformis
Taxonomy
Pernopecten piriformis was named by Liu (1976).
It was recombined as Entolium piriformis by Yin (1983), Feng et al. (1992) and Posenato (2005).
It was recombined as Entolium piriformis by Yin (1983), Feng et al. (1992) and Posenato (2005).
Sister species lacking formal opinion data
E. cainalloi, E. calvum, E. contemptibile, E. corneaolum, E. disciformis, E. hallense, E. kolyaense, E. liasianum, E. liscaviensis, E. mongqiongense, E. nicoleti, E. obovatum, E. orbicularis, E. partitum, E. pseudodiscites, E. saccoi, E. spathulatus, E. subdemissus, E. undiferum, E. argentinum, E. quotidianum, E. spedeni, Pecten quotidianus
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Pernopecten piriformis Liu p. 206 figs. Pl 15, figs 15,16 |
| 1977 | Pernopecten piriformis Zhang p. 518 figs. Pl 199, figs 5,6 |
| 1982 | Pernopecten piriformis Li et al. p. 319 figs. Pl 123, figs 10,11 |
| 1983 | Entolium piriformis Yin p. 369 figs. Pl 33, fig 9 |
| 1992 | Entolium piriformis Feng et al. p. 518 figs. Pl 8, fig 1 |
| 2005 | Entolium piriformis Posenato p. 223 figs. Pl 2, fig 7 |
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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.
†Entolium piriformis Liu 1976
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 14.7 | 7.04 | 30.8 | 18.9 | 16.8 | |
| valve height | 8 | 6.26 | 0.672 | 21.0 | 10.7 | 7.47 |
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| Source: subg = subgenus, f = family, o = order | |||||
| References: Kiessling 2004, Aberhan et al. 2004 | |||||
Age range: base of the Wuchiapingian to the top of the Changhsingian or 259.90000 to 252.17000 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Capitanian | China (Guangdong) | Pernopecten piriformis (113865) | |
| Wuchiapingian | China (Jiangxi) | Pernopecten piriformis (102114 102115) | |
| Wuchiapingian | China (Guangdong) | Pernopecten piriformis (123591) | |
| Wuchiapingian | China (Qinghai) | Pernopecten piriformis (112859 112861) | |
| Wuchiapingian | China (Hubei) | Pernopecten piriformis (123593) | |
| Changhsingian | China (Yunnan) | Entolium piriformis (108196) | |
| Changhsingian | Hungary | Entolium piriformis (82283) | |
| Changhsingian | China (Guizhou) | Entolium piriformis (121007) Pernopecten piriformis (111980 112097) | |
| Changhsingian | China (Fujian) | Entolium piriformis (121403 121406 121427) |