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Taxonomy
Nipponomarcia was named by Ikebe (1941) [Sepkoski's age data: T Mi]. It is not extant.
It was reranked as Katelysia (Nipponomarcia) by Ikebe (1941), Cox et al. (1969).
It was assigned to Katelysia by Ikebe (1941), Cox et al. (1969); and to Veneroida by Sepkoski (2002).
It was reranked as Katelysia (Nipponomarcia) by Ikebe (1941), Cox et al. (1969).
It was assigned to Katelysia by Ikebe (1941), Cox et al. (1969); and to Veneroida by Sepkoski (2002).
Species
Species lacking formal opinion data
Entered
by J. Sepkoski on 2003-01-23; modified by M. Krause on 2015-09-09
Synonymy list
| Year | Name and author |
|---|---|
| 1941 | Katelysia (Nipponomarcia) Ikebe |
| 1941 | Nipponomarcia Ikebe |
| 1969 | Katelysia (Nipponomarcia) Cox et al. p. N683 |
| 2002 | Nipponomarcia Sepkoski |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: base of the Burdigalian to the top of the Langhian or 20.45000 to 13.82000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Miocene | Japan | N. nakamurai (173083) | |
| Burdigalian - Langhian | Japan (Fukui ) | N. sp. (176560) | |
| Langhian | Japan | N. nakamurai (44961) |