WHITE ON BLACK
Whereas in Eparietites from England black suture lines stand out on a white background, here it is exactly the opposite: the chambers of this giant Placenticeras are filled with black sediment, while the chamber partitions are made of light-colored mother-of-pearl. In both cases, it is fascinating to see what a wonderfully delicate work of art nature has created here. The beauty of all this can hardly be surpassed by human imagination and skill.