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Claraioides primitivus
Taxonomy
Claraia primitiva was named by Yin (1983). It is a 3D body fossil. Its type locality is Naquan Section Gx-N 1, Fusui County, which is in a Changhsingian carbonate marl in the Heshan Formation of China.
It was recombined as Claraioides primitivus by Fang (1993).
It was recombined as Claraioides primitivus by Fang (1993).
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.
†Claraioides primitivus Yin 1983
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 10.7 | 9.02 | 14.0 | 10.2 | 2.05 | |
| valve height | 18 | 17.4 | 5.90 | 30.1 | 19.7 | 7.16 |
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004 | |||||
Age range: base of the Wuchiapingian to the top of the Changhsingian or 259.51000 to 251.90200 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | China (Yunnan) | Claraioides primitivus (107829) | |
| Changhsingian | China (Guizhou) | Claraia primitiva (82631 121005 121007) | |
| Changhsingian | Russian Federation | Claraia primitiva (102154) | |
| Changhsingian | China (Guangxi) | Claraia primitiva (type locality: 121424) |