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Tragodesmoceras ashlandicum
Taxonomy
Desmoceras ashlandicum was named by Anderson (1902). Its type specimen is CAS 446.01, a shell, and it is a 3D body fossil. Its type locality is CAS loc. 446, Ashland, which is in a Turonian marine siliciclastic in Oregon.
It was recombined as Pachydiscus ashlandicus by Anderson (1958); it was recombined as Tragodesmoceras ashlandicum by Matsumoto (1959) and Haggart et al. (2005).
It was recombined as Pachydiscus ashlandicus by Anderson (1958); it was recombined as Tragodesmoceras ashlandicum by Matsumoto (1959) and Haggart et al. (2005).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1902 | Desmoceras ashlandicum Anderson p. 100 figs. Pl 4, figs 107, 109 |
| 1958 | Pachydiscus ashlandicus Anderson p. 221 figs. Pl 27, figs 3,3a,4,4a |
| 1958 | Pachydiscus oregonensis Anderson p. 221 figs. Pl 27, figs 2,2a |
| 1959 | Tragodesmoceras ashlandicum Matsumoto pp. 25 - 26 figs. Pl.5，fig.1a, b; Text-figs. 8-10 |
| 2005 | Tragodesmoceras ashlandicum Haggart et al. figs. 6.15-6.17 |
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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.
†Tragodesmoceras ashlandicum Anderson 1902
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Invalid names: Pachydiscus oregonensis Anderson 1958 [synonym]
Diagnosis
No diagnoses are available