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Tornoceras contractum
Taxonomy
Tornoceras (Tornoceras) contractum was named by Glenister (1958). Its type specimen is CPC 1753, a shell, and it is a 3D body fossil.
It was synonymized subjectively with Tornoceras (Tornoceras) simplex by Petersen (1975); it was recombined as Tornoceras contractum by Becker and House (2000), Korn and Klug (2002), Nikolaeva (2009).
It was synonymized subjectively with Tornoceras (Tornoceras) simplex by Petersen (1975); it was recombined as Tornoceras contractum by Becker and House (2000), Korn and Klug (2002), Nikolaeva (2009).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1958 | Tornoceras (Tornoceras) contractum Glenister p. 90 figs. Pl 15, figs 4,6; text-fig 16B |
| 2000 | Tornoceras contractum Becker and House figs. Pl 2, figs 5,6; text-fig 7C |
| 2002 | Tornoceras contractum Korn and Klug p. 155 |
| 2009 | Tornoceras contractum Nikolaeva figs. Pl 4, fig 8 |
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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.
†Tornoceras contractum Glenister 1958
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Diagnosis
No diagnoses are available