|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Cambroclavida - Zhijinitidae
It was assigned to Cambroclavida by Conway Morris et al. (1997), Sepkoski (2002) and Yao et al. (2005); and to Zhijinitidae by Bengtson (1992) and Parkhaev and Demidenko (2010).
|Year||Name and author|
|1984||Kaiyangites Qian and Yin|
|1992||Zhijinites Bengtson p. 1026|
|1997||Zhijinites Conway Morris et al. p. 178|
|2002||Kaiyangites Sepkoski, Jr.|
|2002||Zhijinites Sepkoski, Jr.|
|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.
|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."|