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Ptychosphaera constricta
Taxonomy
Ptychosphaera constricta was named by Perner (1903) [Ptychosphaera constricta Barrande in Perner 1903]. It is not extant. It is the type species of Ptychosphaera.
Synonymy list
| Year | Name and author |
|---|---|
| 1903 | Ptychosphaera constricta Perner |
| 1907 | Ptychosphaera constricta Perner figs. pl. 120 f. 20-21 |
| 1941 | Ptychosphaera constricta Knight p. 289 figs. pl. 12 f. 3a-c |
| 1963 | Ptychosphaera constricta Horný pp. 132 - 133 figs. pl. 34 f. 6-7; pl. 35 f. 1-4 |
| 1997 | Ptychosphaera constricta Frýda and Manda p. 67 figs. pl. 1 f. 1-4 |
| 2023 | Ptychosphaera constricta Wagner p. 341 |
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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.
†Ptychosphaera constricta Perner 1903
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Kiessling 2004, Hendy 2009 | |||||
Age range: base of the Gorstian to the top of the Lochkovian or 426.70000 to 413.02000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gorstian | Czechia (Praha) | Ptychosphaera constricta (58980 154949 154950) | |
| Pridoli | Czechia (Praha) | Ptychosphaera constricta (155864) | |
| Lochkovian | Morocco | Ptychosphaera constricta (13935 13936) | |
| Lochkovian | Czechia (Praha) | Ptychosphaera constricta (56216) |