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Evenia
Taxonomy
Evenia was named as a genus. It is not extant.
It was reranked as Atomodesma (Evenia) by Astafieva (1993).
It was assigned to Atomodesma by Astafieva (1993); to Pterioida by Sepkoski (2002); and to Atomodesmatinae by Biakov (2008).
It was reranked as Atomodesma (Evenia) by Astafieva (1993).
It was assigned to Atomodesma by Astafieva (1993); to Pterioida by Sepkoski (2002); and to Atomodesmatinae by Biakov (2008).
Synonymy list
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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.
G. †Evenia
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†Atomodesma (Evenia) paichoicum Guskov and Muromtseva 1984
†Evenia permica Newell 1955
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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valve height | 6 | 27.6 | 18.5 | 72.0 | 23.9 | 20.3 |
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Source: subc = subclass, c = class | |||||
References: Aberhan et al. 2004, Eaton 1871 |
Age range: base of the Kungurian to the top of the Changhsingian or 283.30000 to 251.90200 Ma
Collections (23 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Kungurian | Russian Federation | Atomodesma paichoica (113905) Atomodesma permica (109944 109945 113992 114124) | |
Roadian | Russian Federation | Atomodesma lenaensis (113997) Atomodesma permica (87301) | |
Wordian | Russian Federation | E. lenaensis (198782 198800 198803 221248 221252) | |
Capitanian | Russian Federation | Atomodesma lenaensis (87152) Atomodesma permica (114135) | |
Wuchiapingian | Russian Federation (Sakha) | Atomodesma permica (113983) | |
Wuchiapingian | Greenland | Posidonia permica (115893 115894 115916 115917) | |
Wuchiapingian | Russian Federation | Atomodesma permica (97376 113982 113984) | |
Changhsingian | Russian Federation | Atomodesma permica (131245) |