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Pernopecten symmetricus
Taxonomy
Pernopecten symmetricus was named by Newell (1940). Its type specimen is YPM 16328 and is a mold.
Sister species lacking formal opinion data
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.
†Pernopecten symmetricus Newell 1940
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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valve height | 4 | 18.7 | 11.9 | 32.1 | 18.0 | 8.73 |
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Source: f = family, o = order | |||||
Reference: Kiessling 2004 |
Age range: base of the Capitanian to the top of the Changhsingian or 265.10000 to 252.17000 Ma
Collections (13 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Capitanian | USA (Texas) | Pernopecten symmetricus (116645 116650) | |
Capitanian | China (Guangdong) | Pernopecten symmetricus (113864 113865) | |
Wuchiapingian | China (Guizhou) | Pernopecten symmetricus (112001 112105) | |
Wuchiapingian | China (Hubei) | Pernopecten symmetricus (123593) | |
Wuchiapingian | China (Hunan) | Pernopecten symmetricus (107820 107826) | |
Changhsingian | China (Guizhou) | Pernopecten symmetricus (108543 112091 121412) | |
Changhsingian | China (Fujian) | Pernopecten symmetricus (121408) |