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Megayoldia (Hataiyoldia)
Taxonomy
Hataiyoldia was named as a genus. It is not extant.
It was reranked as Megayoldia (Hataiyoldia) by Kafanov et al. (2005).
It was assigned to Nuculoida by Sepkoski (2002); and to Megayoldia by Kafanov et al. (2005).
It was reranked as Megayoldia (Hataiyoldia) by Kafanov et al. (2005).
It was assigned to Nuculoida by Sepkoski (2002); and to Megayoldia by Kafanov et al. (2005).
Species lacking formal opinion data
Megangulus tokunagai, Megayoldia arcuata, Megayoldia breviscapha, Megayoldia gratiosa, Megayoldia hayasakai, Megayoldia karaginskiensis, Megayoldia kilanskensis, Megayoldia lautenschlageri, Megayoldia moriyai, Megayoldia ogasawarai, Megayoldia olympiana, Megayoldia orientalis, Megayoldia scapha, Megayoldia sublischkei, Megayoldia subscapha, Megayoldia tokunagai, Megayoldia tokungai, Megayoldia tokungai, Megayoldia toyamaensis, Megayoldia triangula, Portlandia hayasakai
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Hataiyoldia Sepkoski |
| 2005 | Megayoldia (Hataiyoldia) Kafanov et al. p. 6 |
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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.
Subg. †Megayoldia (Hataiyoldia)
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Hendy et al. 2009 | |||||
Age range: base of the Rupelian to the top of the Late/Upper Miocene or 33.90000 to 5.33300 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rupelian | Russian Federation | Megayoldia tokunagai (49980) | |
| Oligocene | Russian Federation | Megayoldia tokunagai (50122) | |
| Late/Upper Oligocene | Russian Federation | Megayoldia tokunagai (70475) | |
| Late/Upper Miocene | Russian Federation | Megayoldia tokunagai (70465 70567) Megayoldia tokungai (70532) |