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Rasenia (Rasenia) inconstans
Taxonomy
Rasenia inconstans was named by Spath (1935).
It was recombined as Rasenia (Rasenia) inconstans by Mesezhnikov (1984).
It was recombined as Rasenia (Rasenia) inconstans by Mesezhnikov (1984).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1935 | Rasenia inconstans Spath p. 45 figs. Pl 8, figs 7,8; pl 10, fig 6 |
| 1984 | Rasenia (Rasenia) inconstans Mesezhnikov p. 100 figs. Pl 8, figs 4-7; pl 10, figs 2-4; pl 11, fig 5; pl 13, fig 1; text-fig 32 |
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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.
†Rasenia (Rasenia) inconstans Spath 1935
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 8 | 17.4 | 11.0 | 31.9 | 14.6 | 7.90 | |
| shell diameter | 8 | 50.6 | 35.0 | 103.0 | 42.5 | 23.8 | |
| shell inflation | 8 | 19.4 | 13.0 | 41.2 | 16.6 | 9.64 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Early/Lower Kimmeridgian or 155.70000 to 150.80000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Kimmeridgian | Russian Federation (Siberia) | Rasenia inconstans (58773 58774 58775) | |
| Early/Lower Kimmeridgian | Russian Federation (Khanty-Mansi Autonomous Okrug) | Rasenia inconstans (164299 164309) |