Arius maculatus

Arius maculatus (n= 12) (Fig. 5, Supplementary data 5) These lapilli have three pronounced angular-like points at the postero-mesial, antero-mesial, and antero-distal margins, making them appear triangular. Their antero-mesial projection (Amp) is subtle, and they have compact curved sulculus lapilli (Sl). Their mesial dents (Md) (the “valleys” along the outer rim of the mesial margin) are subtle, their mesial notch (Mn) is compressed, and they have deep incisura linea basalis (ILb).