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Daughter taxa (time control age-window is: 0-800Ma)![]() | Granddaughter taxa | ||||
| Orbichitina subcylindrical to conical body and a crown of processes on the margin. | |||||
| Armigutta ovoid chamber and a crown of processes on the margin. | |||||
| Salopochitina ovoid to sub cylindrical ornamented body; short lacinied carina located on the margin and extending anteaperturalward into filiform prolongations. | |||||
Catalog entries: Orbichitininae
Original description: Diagnosis: Desmochitinidae bearing a ring of spines or processes at the basal margin of the chamber.
Distinguishing features:
Parent taxon (Desmochitinidae): no neck
This taxon: processes
Geological Range:
Last occurrence (top): at top of Early Devonian Period (100% up, 393.3Ma, in Eifelian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Middle Ordovician Epoch (458.18-471.26Ma, base in Dapingain stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
NB The ranges given for genera and higher taxa are the total ranges of species included in that taxon in this database - so the true total range of the taxon will usually be longer
Achab, A., Asselin, E. & Soufiane, A. (1993). New morphological characters observed in the Order Operculatifera and their implications for the suprageneric Chitinozoan classification. Palynology. 17: 1-9. gsReferences:

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Orbichitininae compiled by the Sonia Camino, viewed: 8-6-2026
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