|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Diploporita - Aristocystitidae
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.
|Y. Makhlouf et al. 2017||Calicinae with an elongate theca composed of abundant, thin, and small thecal plates organised in circlets. Primary plates bear up to three dipores, while secondary and tertiary plates, one tubercular diplopore. Relatively small and elongate peristome connected to two main ambulacral rays subdivided once laterally. Ambulacral rays and peristome covered by two series of polygonal cover plates. Periproct restricted to an anal pyramid composed of triangular plates. Slit-like hydropore located between the peristome and the periproct in the CD interray|