|Basic info||Taxonomic history||Classification||Included Taxa|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
|Year||Name and author|
|1981||Pterodinium cingulatum cingulatum Below|
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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.