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Hayasakapecten
Taxonomy
Hayasakapecten was named by Nakazawa and Newell (1968) [Sepkoski's age data: C u P Guad-u Sepkoski's reference number: 157,1058]. Its type is Hayasakapecten shimizui.
It was assigned to Undopectininae by Waterhouse (2001); to Pterioida by Sepkoski (2002); and to Hayasakapectininae by Bouchet et al. (2010).
It was assigned to Undopectininae by Waterhouse (2001); to Pterioida by Sepkoski (2002); and to Hayasakapectininae by Bouchet et al. (2010).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1968 | Hayasakapecten Nakazawa and Newell p. 69 |
| 2001 | Hayasakapecten Waterhouse pp. 116, 119 |
| 2002 | Hayasakapecten Sepkoski |
| 2010 | Hayasakapecten Bouchet 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.
G. †Hayasakapecten Nakazawa and Newell 1968
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†Hayasakapecten minoensis Hayasaka 1925
†Hayasakapecten reticularis Hayasaka 1925
†Hayasakapecten reticulatus Hayasaka 1925
†Hayasakapecten sasakii Murata 1964
†Hayasakapecten shimizui Nakazawa and Newell 1968
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 11 | 14.3 | 3.54 | 50.0 | 15.5 | 12.3 |
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| Source: f = family, o = order, c = class | |||||
| References: Kiessling 2004, Aberhan et al. 2004 | |||||
Age range: base of the Roadian to the top of the Changhsingian or 272.30000 to 252.17000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Roadian | Japan | Aviculopecten sasakii (113873) | |
| Roadian - Capitanian | China (Hunan) | H. shimizui (123627) | |
| Roadian - Capitanian | China (Hubei) | H. shimizui (123632) | |
| Wordian | Japan | H. sasakii (114493) H. shimizui (114492 114533) | |
| Capitanian | Japan | Aviculopecten minoensis, Aviculopecten reticularis (109638) | |
| Capitanian | Russian Federation | Aviculopecten minoensis (111024) | |
| Capitanian | China (Guangdong) | H. sp. (113864) | |
| Changhsingian | China (Guangxi) | H. sp. (149214) | |
| Changhsingian | China (Hunan) | H. sp. (121730) | |
| Changhsingian | China (Chongqing) | H. sp. (149280) | |
| Changhsingian | China (Sichuan) | H. sp. (121422) |