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Yakovlevia greenlandica
Taxonomy
Muirwoodia greenlandica was named by Dunbar (1955).
It was recombined as Yakovlevia greenlandica by Tazawa (2011).
It was recombined as Yakovlevia greenlandica by Tazawa (2011).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1955 | Muirwoodia greenlandica Dunbar p. 103 figs. Pl 16, figs 1-18 |
1968 | Muirwoodia greenlandica Logan and McGugan p. 1135 figs. Pl 143, figs 1-3 |
1980 | Muirwoodia greenlandica Lee and Gu p. 384 figs. Pl 171, fig 11 |
2011 | Yakovlevia greenlandica Tazawa p. 175 figs. 4.9a-d |
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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.
†Yakovlevia greenlandica Dunbar 1955
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | |||||
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shell height | 1 | 17.9 | |||||
valve height | 1 | 26.3 |
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Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
References: Aberhan et al. 2004, Williams et al. 2000, Nesnidal et al. 2013 |
Age range: base of the Asselian to the top of the Wuchiapingian or 298.90000 to 254.14000 Ma
Collections (33 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Asselian | Canada (British Columbia) | Muirwoodia greenlandica (112843) | |
Wolfcampian - Leonardian | Canada (Yukon) | Muirwoodia greenlandica (61572 61574) | |
Leonardian - Guadalupian | Canada (Yukon) | Muirwoodia greenlandica (61570 61575 61577) | |
Roadian - Wordian | Canada (Yukon) | Muirwoodia greenlandica (61635) | |
Wordian | USA (Alaska) | Yakovlevia greenlandica (102523 102537) | |
Wordian - Capitanian | China (Nei Mongol) | Yakovlevia greenlandica (94915) | |
Wuchiapingian | Svalbard and Jan Mayen | Muirwoodia greenlandica (117553) | |
Wuchiapingian | Japan | Yakovlevia greenlandica (118923) | |
Wuchiapingian | Greenland | Muirwoodia greenlandica (96808 107364 107365 107446 107447 107448 107452 107454 107466 107469 107471 107477 107480 107513 107521 107527 107530 107536 107537 107545 107546) |