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Rasenia (Eurasenia)
Taxonomy
Rasenia (Eurasenia) was named by Geyer (1961). Its type is Ammonites rolandi.
It was assigned to Rasenia by Geyer (1961), Mesezhnikov (1984) and Dąbrowska (1984).
It was assigned to Rasenia by Geyer (1961), Mesezhnikov (1984) and Dąbrowska (1984).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1961 | Rasenia (Eurasenia) Geyer |
| 1984 | Rasenia (Eurasenia) Dąbrowska p. 76 |
| 1984 | Rasenia (Eurasenia) Mesezhnikov p. 112 |
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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.
Subg. †Rasenia (Eurasenia) Geyer 1961
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†Rasenia (Eurasenia) engeli Geyer 1961
†Rasenia (Eurasenia) frischlini Oppel 1863
†Rasenia (Eurasenia) gothica Schneid 1961
†Rasenia (Eurasenia) pseudouralensis Mesezhnikov 1984
†Rasenia (Eurasenia) rolandi Oppel 1863
†Rasenia (Eurasenia) trimera Oppel 1863
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Invalid names: Ammonites strauchianus Oppel 1863 [synonym]
†Rasenia (Eurasenia) triplicata Mesezhnikov 1984
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 10 | 17.1 | 8.00 | 45.0 | 15.9 | 10.1 | |
| shell diameter | 10 | 49.7 | 21.0 | 115.0 | 47.2 | 24.7 | |
| shell inflation | 10 | 19.6 | 8.00 | 35.0 | 20.1 | 7.10 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Early/Lower Kimmeridgian to the top of the Kimmeridgian or 155.70000 to 152.10000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kimmeridgian | Russian Federation | Rasenia pseudouralensis (190540) | |
| Early/Lower Kimmeridgian | Russian Federation (Krasnoyarsk) | Rasenia triplicata (163992) Rasenia triplicata, Rasenia pseudouralensis (163993) | |
| Early/Lower Kimmeridgian | Germany (Bavaria) | Rasenia gothica (212931) | |
| Early/Lower Kimmeridgian | Russian Federation (Siberia) | Rasenia pseudouralensis (58774) | |
| Early/Lower Kimmeridgian | Russian Federation | Eurasenia sp. (190892) | |
| Early/Lower Kimmeridgian | Russian Federation (Khanty-Mansi Autonomous Okrug) | Rasenia pseudouralensis (164299 164308) | |
| Early/Lower Kimmeridgian | Poland | Rasenia engeli, Rasenia gothica (163924) |