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Nautilus sphaericus
Taxonomy
Nautilus sphaericus was named by Forbes (1846). It is a 3D body fossil. Its type locality is Pondicherry, which is in a Maastrichtian marine sandstone/claystone in the Valudavur Formation of India.
It was recombined as Eutrephoceras sphaericum by Kummel (1956), Wiedmann (1960), Shimansky (1975), Klinger (1985), Wilmsen and Aly (2019).
It was recombined as Eutrephoceras sphaericum by Kummel (1956), Wiedmann (1960), Shimansky (1975), Klinger (1985), Wilmsen and Aly (2019).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1846 | Nautilus sphaericus Forbes p. 98 |
| 1910 | Nautilus sphaericus Spengler p. 139 |
| 1956 | Eutrephoceras sphaericum Kummel p. 342 |
| 1960 | Eutrephoceras sphaericum Wiedmann p. 170 figs. Pl 18, figs D-G; pl 23, figs G.M.N |
| 1975 | Eutrephoceras sphaericum Shimansky p. 55 |
| 1985 | Eutrephoceras sphaericum Klinger p. 3 |
| 2019 | Eutrephoceras sphaericum Wilmsen and Aly p. 83 figs. 3A, 4A |
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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.
†Nautilus sphaericus Forbes 1846
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Diagnosis
No diagnoses are available