(51 of 142) in
Middle Jurassic of Poland
Epiplosphaera bireticulata
Gniezdziska Quarry. Sample GQ-6, ammonite
layer (Calloviense Zone), 18 m below top of
Callovian gaizes. Slide 4,
coordinates 24.9-99.0. NEP-1998-040
Lower Callovian
