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Stachella micra
Taxonomy
Stachella mica was named by Yu (1975). It is a 3D body fossil. Its type locality is Laowuji Section Bed 16 (PL23-14,12,11, PL27-32,31,29), Panxian County, which is in a Griesbachian coastal mudstone/mudstone in the Feixianguan Formation of China.
It was corrected as Stachella micra by Yu (1975), Pan and Shen (2008).
It was corrected as Stachella micra by Yu (1975), Pan and Shen (2008).
Sister species lacking formal opinion data
Entered
by M. Clapham on 2011-11-05
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Stachella micra Yu |
| 1975 | Stachella mica Yu p. 202 figs. Pl 1, fig 3 |
| 1980 | Stachella mica Yu p. 202 figs. Pl 1, fig 3 |
| 2008 | Stachella micra Pan and Shen |
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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.
†Stachella micra Yu 1975
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 8.52 | 6.80 | 10.7 | 8.73 | 2.73 |
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| Source: f = family | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Wuchiapingian to the top of the Griesbachian or 259.51000 to 250.50000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | China (Xizang) | Stachella micra (116129) | |
| Griesbachian | China (Guizhou) | Stachella mica (type locality: 112112) |