|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Taxon information from Appendix 1 in Zhao et al. 2012 =protopriapulites haikouensis Hou, Bergström, Wang, Feng & Chen, 1999 =Palaeopriapulites parvus Hou, Bergström, Wang, Feng & Chen, 1999
|Year||Name and author|
|1999||Protopriapulites haikouensis Hou et al.|
|1999||Sicyophorus rara Luo and Hu pp. in Luo, Hy, Chen, Zhang & Tao 1999|
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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.