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Protetragonites quadrisulcatus
Taxonomy
Ammonites quadrisulcatus was named by d'Orbigny (1841). It is not a trace fossil. It is the type species of Protetragonites.
It was recombined as Lytoceras (Protetragonites) quadrisulcatum by Kulkinskaia-Voronetz (1933); it was recombined as Lytoceras quadrisulcatum by Reboulet (1996); it was recombined as Protetragonites quadrisulcatus by Hyatt (1900), Wright et al. (1996), Grigore (2013) and Tongtherm et al. (2016).
It was recombined as Lytoceras (Protetragonites) quadrisulcatum by Kulkinskaia-Voronetz (1933); it was recombined as Lytoceras quadrisulcatum by Reboulet (1996); it was recombined as Protetragonites quadrisulcatus by Hyatt (1900), Wright et al. (1996), Grigore (2013) and Tongtherm et al. (2016).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1841 | Ammonites quadrisulcatus d'Orbigny |
| 1900 | Protetragonites quadrisulcatus Hyatt p. 569 |
| 1933 | Lytoceras (Protetragonites) quadrisulcatum Kulkinskaia-Voronetz |
| 1996 | Lytoceras quadrisulcatum Reboulet p. 191 figs. Pl 38, figs 8,9 |
| 1996 | Protetragonites quadrisulcatus Wright et al. p. 2 |
| 2013 | Protetragonites quadrisulcatus Grigore p. 95 figs. Pl 3, fig 5 |
| 2016 | Protetragonites quadrisulcatus Tongtherm et al. |
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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.
†Protetragonites quadrisulcatus d'Orbigny 1841
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Diagnosis
No diagnoses are available