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Treptoceras yokoyamai
Taxonomy
Loxoceras yokoyamai was named by Kobayashi (1927). It is not extant. Its type specimen is UMUT PM0016, a shell.
It was recombined as Sactoceras yokoyamai by Kobayashi (1934); it was recombined as Ormoceras yokoyamai by Yun (1999); it was recombined as Treptoceras yokoyamai by Niko (2002).
It was recombined as Sactoceras yokoyamai by Kobayashi (1934); it was recombined as Ormoceras yokoyamai by Yun (1999); it was recombined as Treptoceras yokoyamai by Niko (2002).
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.
†Treptoceras yokoyamai Kobayashi 1927
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Aberhan et al. 2004 | |||||