| This quite large ammonite of the genus Polyptychites belongs most likely to the species Polyptychites keyserlingi. | |||
Location: | Hollwede, Nordrhein-Westfalen, Germany | ||
| Size of Ammonite : | about 216 mm | ||
| Age: | Lower Cretaceous , Valanginian(about 140 Mill. years) | ||