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Gaudryceras (Gaudryceras) cassisianum
Taxonomy
Ammonites cassisianus was named by d'Orbigny (1850) [DISTRIBUTION: Cenomanian; Europe.]. It is not a trace fossil.
It was recombined as Anagaudryceras cassisianum by Cooper (1978); it was recombined as Gaudryceras (Gaudryceras) cassisianum by Kennedy (1994), Kennedy et al. (2024).
It was recombined as Anagaudryceras cassisianum by Cooper (1978); it was recombined as Gaudryceras (Gaudryceras) cassisianum by Kennedy (1994), Kennedy et al. (2024).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1850 | Ammonites cassisianus d'Orbigny p. 146 |
| 1931 | Gaudryceras salinarium Douville p. 42 figs. Pl 1, fig 3; text-fig 5 |
| 1978 | Anagaudryceras cassisianum Cooper p. 65 figs. 8, 9, 10J, 11B-D |
| 1987 | Gaudryceras cenomanense Thomel p. 3 figs. Pl 1, fig 6 |
| 1994 | Gaudryceras (Gaudryceras) cassisianum Kennedy p. 218 |
| 2024 | Gaudryceras (Gaudryceras) cassisianum Kennedy et al. p. 7 figs. 6A-F |
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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.
†Gaudryceras (Gaudryceras) cassisianum d'Orbigny 1850
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Invalid names: Gaudryceras cenomanense Thomel 1987 [synonym], Gaudryceras salinarium Douville 1931 [synonym]
Diagnosis
No diagnoses are available