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Orthothetina elongata
Taxonomy
Orthothetina elongata was named by Nakamura (1972). Its type specimen is UHR 13567 and is a mold. Its type locality is Imo, Yahagi, Rikuzentakata City, Iwate Prefecture, Nakamura loc, which is in a Roadian marine siliciclastic in the Kanokura Formation of Japan.
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1972 | Orthothetina elongata Nakamura p. 379 figs. Pl 1, figs 3-6; pl 2, fig 1 |
| 1992 | Orthothetina rara Shen et al. p. 176 figs. Pl 2, figs 7-10 |
| 2007 | Orthothetina elongata Shen and Shi p. 23 figs. Pl 7, figs 21-24 |
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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.
†Orthothetina elongata Nakamura 1972
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Invalid names: Orthothetina rara Shen et al. 1992 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 11.0 |
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| Source: c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Roadian to the top of the Changhsingian or 272.30000 to 252.17000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Roadian | Japan | Orthothetina elongata (type locality: 114089) | |
| Changhsingian | China (Chongqing) | Orthothetina rara (94984) |