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Mennerella
Taxonomy
Mennerella is a genus. It is not extant.
It was assigned to Palaeocopida by Sepkoski (2002); and to Beyrichiopsidae by Benson et al. (1961), Crasquin and Forel (2010).
It was assigned to Palaeocopida by Sepkoski (2002); and to Beyrichiopsidae by Benson et al. (1961), Crasquin and Forel (2010).
Entered
by J. Sepkoski on 2003-01-23
Synonymy list
| Year | Name and author |
|---|---|
| 1961 | Mennerella Benson et al. p. Q186 |
| 2002 | Mennerella Sepkoski |
| 2010 | Mennerella Crasquin and Forel p. 338 |
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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. †Mennerella
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| carapace height | 3 | 0.300 | 0.280 | 0.320 | 0.300 | 0.020 | |
| valve height | 2 | 0.007 | 0.007 | 0.008 | 0.007 | 0.001 |
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| Source: o = order, c = class | |||||
| References: Alvarez et al. 2008, Kiessling 2004 | |||||
Age range: Changhsingian or 254.14000 to 251.90200 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Changhsingian | China (Zhejiang) | M. sp. (97900 97910 97919 97920 117670 117673) |