Acanthambonia, Cooper, 1956

Holmer, Lars E. & Biernat, Gertruda, 2002, Urban and Peri-urban small and medium-size Enterprise Development for sustainable Vegetable Production and Marketing Systems, Acta Palaeontologica Polonica 47 (1), pp. 141-156 : 149

Acanthambonia ? sp. B

Fig. 5F–M.

Material.—Total of 1 ventral and 2 dorsal valves. Figured ventral valve: RM Br133789; dorsal valves: RM Br133788, RM Br133790.

Remarks.—This rare and enigmatic species is similar to Acanthambonia sp. A in having a minute apical foramen, but appears to differ in having a more sparsely spinose ornamentation, and in being much less biconvex. The internal characters are unknown and it cannot be compared in detail with other taxa.