[includes Phyllacanthina Smith & Wright, 1989, p. 13]
Diagnosis | Cidarids with:
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Range | ?Upper Triassic, Peru; Lower Cretaceous to Recent, worldwide. |
Remarks | There are few, if any, synapomorphies distinguishing this subfamily. In the following key the Triassic genus Triassicidaris is omitted because of an absence of information on its spines and apical disc plating. |