Acrocythere aff. pumila Plumhoff, 1963

Fig. 9: 13

Material.

3 LV in samples He19-18 and He19-27.

Occurrence.

Upper Aalenian, Bradfordensis Zone (Gigantea Subzone) to Concavum Zone; Germany.

Remark.

In addition to the differentiation from Acrocythere pumila in Plumhoff, 1963, it should be noted that the reticulation between the median rib and the ventral rib in the posterior section is alternating here, whereas it is clearly linear in A. pumila .