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Alaskoceras sewardense
Taxonomy
Plectoceras sewardense was named by Flower (1941) ["Plectoceras" sewardense]. It is a 3D body fossil. Its type locality is On crest of ridge between Cassiterite Creek and Lost River, about 5000’ N.12W. o, which is in a Floian marine horizon in the Ol Formation of Alaska. It is the type species of Alaskoceras.
It was recombined as Alaskoceras sewardense by Miller and Kummel (1945).
It was recombined as Alaskoceras sewardense by Miller and Kummel (1945).
Synonymy list
| Year | Name and author |
|---|---|
| 1941 | Plectoceras sewardense Flower pp. 6, 14-17 figs. pl. 2, figs 1-2 |
| 1945 | Alaskoceras sewardense Miller and Kummel pp. 127 - 128 figs. Plate 17, figures 1-6 |
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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.
†Alaskoceras sewardense Flower 1941
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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 | |||||