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Oldhamina kitakamiensis
Taxonomy
Oldhamina kitakamiensis was named by Tazawa (1982). Its type specimen is IGPS 97715 and is a mold. Its type locality is Komasunaizawa River, Kanayashiki, Yahagi-cho, Rikuzentakata City, which is in a Changhsingian marine sandstone in the Toyoma Formation of Japan.
Synonymy list
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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.
†Oldhamina kitakamiensis Tazawa 1982
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
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| valve height | 1 | 18.1 |
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| Source: subo = suborder, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Williams et al. 2000 | |||||
Age range: Changhsingian or 254.14000 to 251.90200 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Changhsingian | Japan | Oldhamina kitakamiensis (type locality: 118937 149802) |