|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Rhynchonellata - Orthida - Platystrophiidae
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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.
|M. A. Zuykov and D. A. T. Harper 2007||Small Platystrophia species; subrectangular in outline; ventral sulcus and dorsal fold narrow; radial ornament with one costa in sulcus, two costae on fold, five to six costae on flanks; brachiophores massive, subrhomboidal in cross-section; cardinal process extended anteriorly to join median septum that continues to midvalve.|