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Tollia (Neocraspedites) semisulcata
Taxonomy
Polyptychites semisulcatus was named by Koenen (1902) [DISTRIBUTION: Valanginian; Europe, Greenland.]. It is not a trace fossil.
It was recombined as Neocraspedites semisulcatus by Jeletzky and Kemper (1988); it was recombined as Tollia (Neocraspedites) semisulcata by Alsen (2006).
It was recombined as Neocraspedites semisulcatus by Jeletzky and Kemper (1988); it was recombined as Tollia (Neocraspedites) semisulcata by Alsen (2006).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1902 | Polyptychites semisulcatus Koenen figs. pl. 2, fig. 1 |
| 1988 | Neocraspedites semisulcatus Jeletzky and Kemper p. 40 figs. Pl 3, fig 1 |
| 2006 | Tollia (Neocraspedites) semisulcata Alsen p. 63 |
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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.
†Tollia (Neocraspedites) semisulcata Koenen 1902
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 26.6 | 19.0 | 32.0 | 29.0 | 4.98 | |
| shell diameter | 6 | 67.9 | 49.0 | 77.0 | 73.8 | 11.2 | |
| shell inflation | 6 | 18.3 | 12.3 | 21.8 | 19.4 | 3.56 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Early/Lower Valanginian or 137.05000 to 132.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Valanginian | Greenland | Tollia semisulcata (83742) |