|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Helcionelloida - Helcionellida - Helcionellidae
It was assigned to Multifariidae by Runnegar and Jell (1976) and Berg-Madsen and Peel (1978); to Bellerophontida by Bengtson (1992); to Khairkhaniidae by Missarzhevsky (1989) and Parkhaev (2002); to Helcionelloida by Sepkoski (2002); and to Helcionellidae by Gubanov et al. (2004) and Wotte (2006).
|Year||Name and author|
|1976||Protowenella Runnegar and Jell|
|1978||Protowenella Berg-Madsen and Peel p. 124|
|1989||Protowenella Missarzhevsky p. 181|
|1992||Protowenella Bengtson p. 1026|
|2002||Protowenella Parkhaev p. 37|
|2002||Protowenella Sepkoski, Jr.|
|2004||Protowenella Gubanov et al. p. 14|
|2006||Protowenella Wotte p. 149|
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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.