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Zhijinites
Taxonomy
Zhijinites was named by Qian (1978) [Sepkoski's age data: Cm Tomm-l Cm Atda-u Sepkoski's reference number: 923,1030]. Its type is Zhijinites longistriatus.
It was assigned to Cambroclavida by Conway Morris et al. (1997), Sepkoski (2002), Yao et al. (2005); and to Zhijinitidae by Bengtson (1992), Parkhaev and Demidenko (2010).
It was assigned to Cambroclavida by Conway Morris et al. (1997), Sepkoski (2002), Yao et al. (2005); and to Zhijinitidae by Bengtson (1992), Parkhaev and Demidenko (2010).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Zhijinites Qian |
| 1984 | Kaiyangites Qian and Yin |
| 1992 | Zhijinites Bengtson p. 1026 |
| 1997 | Zhijinites Conway Morris et al. p. 178 |
| 2002 | Kaiyangites Sepkoski |
| 2002 | Zhijinites Sepkoski |
| 2005 | Kaiyangites Yao et al. p. 700 |
| 2005 | Zhijinites Yao et al. p. 701 |
| 2010 | Zhijinites Parkhaev and Demidenko p. 907 |
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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.
G. †Zhijinites Qian 1978
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†Zhijinites claviformis Qian and Xiao 1984
†Zhijinites longistriatus Qian 1978
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Invalid names: Zhijinites costatus Chen 1979 [synonym], Zhijinites dictyoformis Chen 1979 [synonym], Zhijinites minutus Qian 1978 [synonym]
†Zhijinites lubricus Qian et al. 1979
†Zhijinites panduriformis Qian and Yin 1984
Invalid names: Kaiyangites Qian and Yin 1984 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Y. Parkhaev and Y. Demidenko 2010 | "Small, up to 1 mm long nail-shaped sclerites, composed of discoid base (or shield) and subcentral long spine off going from base. Discoid base circular, oval, quadrangular, irregularly cordate, or violin-like in outlines, often thickened in central area. Spine pyramidal, straight or curved, with circular, oval, or crescent-like cross-section, perpendicular to basal shield, or inclined to 40°–50°. Base smooth externally or bears radial striae. Spine surface smooth or with transverse furrows and longitudinal ribs." |
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy 2009, Kiessling 2004 | |||||
Age range: base of the Jinnigian to the top of the Atdabanian or 538.80000 to 516.00000 Ma
Collections (40 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Jinnigian | China (Guizhou) | Kaiyangites novilis (106522) | |
| Nemakit-Daldynian | China (Hunan) | Kaiyangites multispinatus, Kaiyangites novilis (97714) Kaiyangites novilis (86661) | |
| Nemakit-Daldynian | China (Shaanxi) | Kaiyangites novilis (86621 86662) Z. sp. (86568) Z. sp., Z. longistriatus (86566) | |
| Nemakit-Daldynian | China (Sichuan) | Z. longistriatus (8088 86618) | |
| Nemakit-Daldynian | China (Zhejiang) | Kaiyangites novilis (86663) | |
| Meishucunian | China (Hubei) | Z. lubricus (107634) | |
| Meishucunian | China (Xinjiang) | Z. claviformis (107481) | |
| Meishucunian | China (Shaanxi) | Z. minutus, Z. lubricus (107790) | |
| Meishucunian | China (Zhejiang) | Kaiyangites sp., Kaiyangites jiangshanensis (108038) | |
| Meishucunian | China (Sichuan) | Z. sp. (107389) | |
| Meishucunian | China (Guizhou) | Kaiyangites novilis (106520) Z. sp. (106508 106514 106519 108391) Z. sp., Z. longistriatus, Z. minutus (106513) Z. sp., Z. longistriatus, Z. minutus, Z. panduriformis (106512) | |
| Meishucunian | China (Yunnan) | Z. longistriatus (201523 201552 201566 201590) Z. sp. (108309) | |
| Meishucunian - Tommotian | China (Yunnan) | Z. longistriatus (86664 96286 96287 96288) | |
| Tommotian | China (Yunnan) | Z. longistriatus (171902) | |
| Tommotian - Atdabanian | China (Xinjiang) | Z. claviformis (6814) | |
| Atdabanian | China (Xinjiang) | Z. claviformis (6815 7824 7825 7826 7827) | |
| Atdabanian | China (Guizhou) | Kaiyangites noveilis (96651) | |
| Atdabanian | China (Zhejiang) | Kaiyangites noveilis (96666) |