|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Rhynchonellata - Spiriferida - Ingelarellidae
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.
|J. B. Waterhouse 1987||Medium-sized shells with well defined sulcus and rounded fold, lacking subplicae or grooves, lateral plicae usually present in 3-5 pairs, ventral adminicula short to moderate in length, close-set; tabellae about 0.3 to 0.4 length of dorsal valve, scarcely diverging anteriorly.|