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Cyrena (Batissa) ponderosa
Taxonomy
Cyrena (Batissa) ponderosa was named by Nagao (1928). It is a 3D body fossil. Its type locality is Koyagijima, which is in a Paleogene marine horizon in Japan.
Sister species lacking formal opinion data
Batissa antiqua, Batissa keraudrenia, Batissa magna, Batissa violacea, Corbicula hukayai, Corbicula sitakaraensis, C. albertensis, C. anomala, C. arnouldi, C. cretatcea, C. cuneiformis, C. cycladiformis, C. deperdita, C. forbesi, C. garumnica, C. gibbosula, C. huarazensis, C. intermedia, C. laletana, C. media, C. obliquata, C. obovata, C. obtusa, C. pisum, C. pulchara, C. pulchra, C. securis, C. sirena, C. sirena, C. sirena, C. sirena, C. solitaria, C. suborbicularis, C. tellinella, C. valdensis, C. subtrigonalis, C. brongniarti, C. brongniarti, C. convexa, C. convexa, C. convexa, C. acuta, C. floridana, C. pompholyx
Synonymy list
| Year | Name and author |
|---|---|
| 1928 | Cyrena (Batissa) ponderosa Nagao p. 108 figs. Plate XX, Figs. 1, 30 |
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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.
†Cyrena (Batissa) ponderosa Nagao 1928
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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, Todd 2001 | |||||
Age range: Middle Eocene or 48.07000 to 37.71000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Paleogene | Japan (Nagasaki) | Cyrena ponderosa (type locality: 203223) | |
| Eocene | Japan | Cyrena ponderosa (203229) | |
| Middle Eocene | Japan | Cyrena ponderosa (203230) | |
| Middle Eocene | Japan (Nagasaki) | Cyrena ponderosa (203224) |