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Calicinae
Taxonomy
Calixinae was named by Chauvel (1966). Its type is Calix.
It was corrected as Calicinae by Makhlouf et al. (2017).
It was assigned to Aristocystitidae by Chauvel (1966) and Makhlouf et al. (2017).
It was corrected as Calicinae by Makhlouf et al. (2017).
It was assigned to Aristocystitidae by Chauvel (1966) and Makhlouf et al. (2017).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1966 | Calixinae Chauvel |
| 2017 | Calicinae Makhlouf et al. p. 303 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Y. Makhlouf et al. 2017 | Aristocystitids with an elongate to pyrifom theca, composed of numerous plates regularly (juvenile stages) to irregularly organised. Plate surface flattened to convex and bearing central umbo to well-developed spine. Roundish to elliptical peripores including one large diplopore, sometimes covered by a tubercle. Elongate peristome central to a four-fold ambulacral system. |