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Hysteroceras varicosum
Taxonomy
Ammonites varicosus was named by Sowerby (1824). It is a 3D body fossil. It is the type species of Hysteroceras.
It was recombined as Schloenbachia varicosa by Choffat (1905); it was recombined as Brancoceras varicosum by Spath (1922); it was recombined as Hysteroceras varicosum by Hyatt (1900), Spath (1934), Haas (1942) and Henderson (1990).
It was recombined as Schloenbachia varicosa by Choffat (1905); it was recombined as Brancoceras varicosum by Spath (1922); it was recombined as Hysteroceras varicosum by Hyatt (1900), Spath (1934), Haas (1942) and Henderson (1990).
Subspecies
Synonymy list
| Year | Name and author |
|---|---|
| 1824 | Ammonites varicosus Sowerby |
| 1900 | Hysteroceras varicosum Hyatt p. 590 |
| 1905 | Schloenbachia varicosa Choffat p. 34 figs. Pl 4, fig 6 |
| 1922 | Brancoceras varicosum Spath |
| 1934 | Hysteroceras varicosum Spath |
| 1942 | Hysteroceras varicosum Haas p. 19 figs. Pl 1, fig 20; pl 3, fig 9 |
| 1990 | Hysteroceras varicosum Henderson p. 114 |
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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.
†Hysteroceras varicosum rarecostata Haas 1942
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Diagnosis
No diagnoses are available