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Pachystrophia triquestra
Taxonomy
Euomphalus triquestra was named by Lindström (1884). It is not a trace fossil.
It was recombined as Liomphalus triquestra by Chapman (1916); it was recombined as Lytospira triquestrus by Rohr and Smith (1978), Rohr and Measures (2001); it was recombined as Pachystrophia triquestra by Wagner (1999), Wagner (2023).
It was recombined as Liomphalus triquestra by Chapman (1916); it was recombined as Lytospira triquestrus by Rohr and Smith (1978), Rohr and Measures (2001); it was recombined as Pachystrophia triquestra by Wagner (1999), Wagner (2023).
Synonymy list
| Year | Name and author |
|---|---|
| 1884 | Euomphalus triquestra Lindström p. 140 figs. pl. 13 f. 32-35 |
| 1916 | Liomphalus triquestra Chapman p. 90 |
| 1978 | Lytospira triquestrus Rohr and Smith pp. 1233 - 1234 figs. pl. 1 f. 4-5 |
| 1999 | Pachystrophia triquestra Wagner |
| 2001 | Lytospira triquestrus Rohr and Measures p. 291 |
| 2023 | Pachystrophia triquestra Wagner p. 1001 |
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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.
†Pachystrophia triquestra Lindström 1884
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class | |||||
| References: Kiessling 2004, Knight et al. 1960 | |||||
Age range: base of the Sheinwoodian to the top of the Lochkovian or 432.90000 to 413.02000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sheinwoodian | Sweden (Gotland) | Euomphalus triquestra (13547) | |
| Lochkovian | Canada (Northwest Territories) | Lytospira triquestrus (3733 3738 3739) |