Annals of the South African MuseumAnnale van die Suid-Afrikaanse Museum . Fig. 21. Pisotrigonia ventricosa (Krauss), x 1. A-D. Lateral, posterior, anterior and dorsalviews of the provisional neotype. E-F. Dorsal and lateral views of a topotype. G-H. Lateraland dorsal views of a topotype. I-J. Internal and external views of a left valve. All the speci-mens are in the South African Museum. LOWER CRETACEOUS TRIGONIOIDA FROM THE ALGOA BASIN 41.

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Keywords: ., bookauthorsouthafr, bookcentury1800, bookdecade1890, bookyear1898