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Juxathyris bisulcata
Taxonomy
Araxathyris bisulcata was named by Liao (1980). Its type specimen is NIGP 43786 and is a 3D body fossil. Its type locality is Jiaozishan Section Bed 16 (AJ-35,34,33), Anshun County, which is in a Wuchiapingian carbonate limestone in China.
It was corrected as Araxathyris bisulcatus by Liao and Meng (1986); it was recombined as Rectambitus bisulcatus by Xu and Grant (1994); it was recombined as Juxathyris bisulcata by Shen et al. (2004), Shen and Zhang (2008) and Angiolini and Carabelli (2010).
It was corrected as Araxathyris bisulcatus by Liao and Meng (1986); it was recombined as Rectambitus bisulcatus by Xu and Grant (1994); it was recombined as Juxathyris bisulcata by Shen et al. (2004), Shen and Zhang (2008) and Angiolini and Carabelli (2010).
Synonymy list
| Year | Name and author |
|---|---|
| 1980 | Araxathyris bisulcata Liao p. 268 figs. Pl 9, figs 14-17 |
| 1983 | Araxathyris bisulcata Waterhouse p. 132 figs. Pl 4, figs 6,7 |
| 1986 | Araxathyris bisulcatus Liao and Meng figs. Pl 4, fig 6 |
| 1994 | Rectambitus bisulcatus Xu and Grant p. 50 figs. 38.19-38.30,39 |
| 1995 | Araxathyris bisulcata Zeng et al. figs. Pl 19, figs 10,11 |
| 2004 | Juxathyris bisulcata Shen et al. p. 897 figs. 8.24-8.41,14 |
| 2008 | Juxathyris bisulcata Shen and Zhang fig. 6.1,6.2 |
| 2010 | Juxathyris bisulcata Angiolini and Carabelli p. 78 figs. Pl 3, fig 22; pl 4, figs 28,29 |
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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.
†Juxathyris bisulcata Liao 1980
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. B. Waterhouse 1983 | Small suboval shells with narrow sulcus in each valve. |
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 10.0 | 5.62 | 15.0 | 10.1 | 3.53 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Wuchiapingian to the top of the Changhsingian or 259.90000 to 252.17000 Ma
Collections (32 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | Iran | Juxathyris bisulcata (125651) | |
| Wuchiapingian | China (Hunan) | Juxathyris bisulcata (117499) | |
| Wuchiapingian | China (Guizhou) | Araxathyris bisulcata (type locality: 111995 112001) Araxathyris bisulcata, Araxathyris abichi (112000 112002) | |
| Wuchiapingian | China (Chongqing) | Araxathyris bisulcata (156868 156873 156874) | |
| Changhsingian | China (Guangxi) | Araxathyris bisulcata (206105) | |
| Changhsingian | China (Hunan) | Araxathyris bisulcatus (105918) | |
| Changhsingian | China (Guizhou) | Araxathyris bisulcata (117464 117465 117476 117480 117481) | |
| Changhsingian | Thailand | Araxathyris bisulcata (42776 42777) | |
| Changhsingian | China (Chongqing) | Araxathyris bisulcata (94966 94967 94969 94970 94972 94976 94977 94984) Juxathyris bisulcata (52154 52155 94978 94981) | |
| Changhsingian | China (Sichuan) | Araxathyris bisulcata (95289 156812) |