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Hunanopecten exilis
Taxonomy
Hunanopecten exilis was named by Zhang (1977). Its type specimen is IV55312, a shell (Butterflied articulated external mold), and it is a mold. Its type locality is Duanpoqiao, Shaodong County, which is in a Changhsingian deep-water mudstone in the Dalong Formation of China.
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Hunanopecten exilis Zhang p. 513 figs. Pl 197, figs 13-20 |
| 1982 | Hunanopecten exilis Li et al. p. 318 figs. Pl 120, figs 1-4 |
| 1983 | Hunanopecten exilis Yin p. 370 figs. Pl 32, figs 1-3; pl 33, fig 6 |
| 1987 | Hunanopecten exilis Fang p. 377 figs. Pl 2, figs 8-10 |
| 1993 | Hunanopecten exilis Wang p. 467 figs. Pl 3, figs 1-5 |
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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.
†Hunanopecten exilis Zhang 1977
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 34 | 5.46 | 0.555 | 17.6 | 5.89 | 3.96 |
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| Source: o = order, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004 | |||||
Age range: base of the Wordian to the top of the Changhsingian or 266.90000 to 252.17000 Ma
Collections (45 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wordian | China (Jiangsu) | Hunanopecten exilis (102117) | |
| Wuchiapingian | China (Hunan) | Hunanopecten exilis (95749 107809 107814 107821) | |
| Wuchiapingian | China (Sichuan) | Hunanopecten exilis (121414 121415 121417) | |
| Wuchiapingian | China (Guizhou) | Hunanopecten exilis (121004 121006) | |
| Changhsingian | China (Fujian) | Hunanopecten exilis (95481 95484 111730 111731 111732 111739 120149 120150) | |
| Changhsingian | China (Jiangsu) | Hunanopecten exilis (111748) | |
| Changhsingian | China (Guangxi) | Hunanopecten exilis (95334 95336 95337 121425 121426 123612 149214) | |
| Changhsingian | China (Anhui) | Hunanopecten exilis (121413 121430 121431 149198 149200) | |
| Changhsingian | China (Sichuan) | Hunanopecten exilis (111604) | |
| Changhsingian | China (Guizhou) | Hunanopecten exilis (82631 111987 121005 121007) | |
| Changhsingian | China (Hubei) | Hunanopecten exilis (95722 123643) | |
| Changhsingian | China (Hunan) | Hunanopecten exilis (95750 97259 97260 type locality: 105947 107810 107822 123640) |