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Hayasakapecten shimizui
Taxonomy
Hayasakapecten shimizui was named by Nakazawa and Newell (1968). It is a 3D body fossil. Its type locality is Tenjinnoki, Maiya, which is in a Wordian marine sandstone in the Tenjinnoki Formation of Japan. It is the type species of Hayasakapecten.
Synonymy list
| Year | Name and author |
|---|---|
| 1968 | Hayasakapecten shimizui Nakazawa and Newell |
| 1977 | Hayasakapecten shimizui Zhang p. 512 figs. Pl 197, figs 9-11 |
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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.
†Hayasakapecten shimizui Nakazawa and Newell 1968
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 9 | 11.7 | 3.54 | 19.0 | 14.5 | 5.24 |
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| Source: f = family, o = order, c = class | |||||
| References: Kiessling 2004, Aberhan et al. 2004 | |||||
Age range: Wordian or 266.90000 to 264.28000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Roadian - Capitanian | China (Hunan) | Hayasakapecten shimizui (123627) | |
| Roadian - Capitanian | China (Hubei) | Hayasakapecten shimizui (123632) | |
| Wordian | Japan | Hayasakapecten shimizui (type locality: 114492 114533) |