Skeleton of the Fossil Shark Isurus denticulatus from the Turonian (Late Cretaceous) of Germany—Ecological Coevolution with Prey of Mackerel Sharks
Figure 2
(a) Stratigraphy of the Halle quarry sections (combined quarries Hesseltal and Foerth), with the position of fish-rich beds, isolated Isurus tooth, and skeletons. (b) Mortality models due to the decreasing of the oxygen minimum zone within the water column during algae blooming and mass-foraminifera/fish-mortalities as result of upwelling events (from [17]).
