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Towapteria nipponica
Taxonomy
Towapteria nipponica was named by Nakazawa and Newell (1968). It is a mold. Its type locality is Tenjinnoki, Maiya, which is in a Wordian marine sandstone in the Tenjinnoki Formation of Japan.
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.
†Towapteria nipponica Nakazawa and Newell 1968
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 11 | 5.80 | 1.27 | 9.00 | 7.10 | 2.19 |
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| Source: f = family, superf = superfamily, o = order, c = class | |||||
| References: Kiessling 2004, Aberhan et al. 2004, Sanchez Roig 1926 | |||||
Age range: base of the Artinskian to the top of the Changhsingian or 290.10000 to 251.90200 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | Japan (Iwate) | Towapteria nipponica (182561) | |
| Wordian | Japan | Towapteria nipponica (type locality: 114492 114493 114533) | |
| Wuchiapingian | China (Hunan) | Towapteria nipponica (95695) | |
| Wuchiapingian | China (Guizhou) | Towapteria nipponica (112106) | |
| Lopingian | China (Fujian) | Towapteria nipponica (102120) | |
| Wuchiapingian - Changhsingian | China (Guangxi) | Towapteria nipponica (105453) | |
| Changhsingian | Japan | Towapteria nipponica (114491) | |
| Changhsingian | China (Fujian) | Towapteria nipponica (95481) |