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Ptychites trochleaeformis
Taxonomy
Nautilus trochleaeformis was named by Lindstroem (1865).
It was recombined as Ptychites trocheaeformis by Bando (1964); it was recombined as Aristoptychites trochleaeformis by Weitschat and Lehmann (1983); it was recombined as Ptychites trochleaeformis by Tozer (1994).
It was recombined as Ptychites trocheaeformis by Bando (1964); it was recombined as Aristoptychites trochleaeformis by Weitschat and Lehmann (1983); it was recombined as Ptychites trochleaeformis by Tozer (1994).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1865 | Nautilus trochleaeformis Lindstroem |
| 1964 | Ptychites trocheaeformis Bando p. 102 figs. Pl 15, figs 1,2 |
| 1983 | Aristoptychites trochleaeformis Weitschat and Lehmann p. 39 figs. Pl 1, figs 1a,b |
| 1994 | Ptychites trochleaeformis Tozer p. 134 figs. Pl 62, figs 1a,b |
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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.
†Ptychites trochleaeformis Lindstroem 1865
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 75.0 | - | - | 75.0 | - | |
| shell diameter | 3 | 132.5 | 120.0 | 155.0 | 125.0 | 18.9 | |
| shell inflation | 3 | 26.0 | - | - | 26.0 | - |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Illyrian | Canada (Alberta) | Ptychites trochleaeformis (105190 137143) | |
| Illyrian | Svalbard and Jan Mayen (Spitsbergen) | Aristoptychites trochleaeformis (211377) | |
| Illyrian | Svalbard and Jan Mayen | Aristoptychites trochleaeformis (144472 144473) | |
| Illyrian | Canada (Nunavut) | Ptychites trochleaeformis (43850) | |
| Illyrian | Canada (British Columbia) | Ptychites trochleaeformis (141761) | |
| Ladinian | Svalbard and Jan Mayen | Ptychites trochleaeformis (212938 212971) | |
| Fassanian | Japan | Ptychites trocheaeformis (124316) |