Beher E., Brand E., Franz M. (2010) Bathonian and Lower Callovian ostracods of Albstadt-Pfeffingen Middle Jurassic, Baden-Württemberg, Germany) // Palaeodiversity. Vol.3. P.43–57.
The study of ostracods in 13 samples from the Bathonian and Lower Callovian of Albstadt-Pfefﬁ ngen (Baden-Württemberg, southern Germany) yielded ﬁve faunal assemblages. The assemblages in the Bathonian are in general more diverse than in the Lower Callovian; at the Bathonian/Callovian boundary a signiﬁ cant number of last occurrences of taxa are recorded (15). In the Keppleri subzone of the Lower Callovian poor microfaunal assemblages indicate unfavourable bottom water conditions. In the upper Herveyi and the lower Koenigi zone the number of individuals and the diversity both increase again.