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Oxybeloceras crassum
Taxonomy
Ptychoceras crassum was named by Whitfield (1877). It is not a trace fossil. It is the type species of Oxybeloceras.
It was recombined as Oxybeloceras crassum by Hyatt (1900), Kennedy and Cobban (1994), Kennedy et al. (2000) and Ifrim et al. (2015).
It was recombined as Oxybeloceras crassum by Hyatt (1900), Kennedy and Cobban (1994), Kennedy et al. (2000) and Ifrim et al. (2015).
Synonymy list
| Year | Name and author |
|---|---|
| 1877 | Ptychoceras crassum Whitfield |
| 1900 | Oxybeloceras crassum Hyatt p. 588 |
| 1994 | Oxybeloceras crassum Kennedy and Cobban p. 1294 |
| 2000 | Oxybeloceras crassum Kennedy et al. p. 65 |
| 2015 | Oxybeloceras crassum Ifrim et al. p. 238 figs. 11A-D |
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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.
†Oxybeloceras crassum Whitfield 1877
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Diagnosis
No diagnoses are available