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Coeloscleritophora - Chancelloriida - Chancelloriidae

Synonymy list
YearName and author
1965Allonnia Doré and Reid
1982Dimidia Luo and Jiang p. 198
1982Onychia Luo and Jiang p. 198
1988Rosella Vassiljeva and Sayutina p. 197
1989Zhurinia Missarzhevsky p. 204
2001Allonnia Bengtson and Hou p. 19
2010Allonnia Parkhaev and Demidenko p. 899

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classCoeloscleritophoraBengston and Missarzhevsky 1981
orderChancelloriidaWalcott 1920
familyChancelloriidaeWalcott 1920
genusAllonniaDoré and Reid 1965

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"Sclerites composed of two or more hollow radial spines joining each other. Angle between spine and basal plane of sclerite always acute."