|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Rhynchonellata - Orthida - Paurorthidae
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.
|B. G. Baarli 1988||Paurorthis with deep notothyrial cavity. ridge-like cardinal process. Moderately developed median ridge. and long elongate posterior muscle scars lying laterally to anterior scars in brachial valve. Pedicle valve with broad median ridge extending to anterior margin, arid very strong teeth.|