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Aristoptychites kolymensis
Taxonomy
Ptychites kolymensis was named by Kiparisova (1937). Its type specimen is TsNIGR 88/5302 and is a 3D body fossil.
It was recombined as Aristoptychites kolymensis by Bychkov et al. (1976) and Weitschat and Lehmann (1983).
It was recombined as Aristoptychites kolymensis by Bychkov et al. (1976) and Weitschat and Lehmann (1983).
Synonymy list
Year | Name and author |
---|---|
1937 | Ptychites kolymensis Kiparisova p. 166 figs. Pl4, fig 3 |
1976 | Aristoptychites kolymensis Bychkov et al. |
1983 | Aristoptychites kolymensis Weitschat and Lehmann p. 43 figs. Pl 3, figs 1-4 |
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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.
†Aristoptychites kolymensis Kiparisova 1937
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 4 | 27.6 | 26.0 | 32.0 | 26.5 | 2.87 | |
shell diameter | 4 | 54.3 | 51.0 | 63.0 | 52.0 | 5.69 | |
shell inflation | 4 | 11.4 | 10.0 | 14.0 | 11.0 | 1.73 |
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Source: o = order, c = class | |||||
References: Kiessling 2003, Kiessling 2004 |
Age range: Ladinian or 242.00000 to 237.00000 Ma
Collections (4 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Ladinian | Russian Federation | Aristoptychites kolymensis (202903) | |
Fassanian | Svalbard and Jan Mayen | Aristoptychites kolymensis (144477 144478 144479) |