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Cambroclavida - Zhijinitidae
It was assigned to Cambroclavitidae by Mambetov and Repina (1979); to Problematica by Qian and Zhang (1983) and Duan (1984); to Zhijinitidae by Bengtson (1992); and to Cambroclavida by Sepkoski (2002) and Yao et al. (2005).
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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.