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Polyptychites (Polyptychites) plenus
Taxonomy
Polyptychites plenus was named by Burdykina (1983) [DISTRIBUTION: Valanginian; Greenland, Siberia.]. It is not a trace fossil.
It was recombined as Polyptychites (Polyptychites) plenus by Alsen (2006).
It was recombined as Polyptychites (Polyptychites) plenus by Alsen (2006).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1983 | Polyptychites plenus Burdykina figs. pl. 1, fig. 1 |
2006 | Polyptychites (Polyptychites) plenus Alsen p. 85 |
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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.
†Polyptychites (Polyptychites) plenus Burdykina 1983
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 8 | 15.5 | 10.0 | 25.0 | 14.5 | 4.79 | |
shell diameter | 8 | 39.3 | 27.0 | 59.0 | 37.2 | 10.5 | |
shell inflation | 8 | 11.7 | 8.40 | 18.3 | 10.8 | 3.42 |
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Source: o = order, c = class | |||||
References: Kiessling 2003, Kiessling 2004 |
Age range: base of the Valanginian to the top of the Early/Lower Valanginian or 139.80000 to 136.40000 Ma
Collections (4 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Early/Lower Valanginian | Russian Federation | Polyptychites plenus (65452) | |
Early/Lower Valanginian | Greenland | Polyptychites plenus (83742) | |
Valanginian | Greenland | Polyptychites plenus (83741) | |
Valanginian | Russian Federation | Polyptychites plenus (65458) |