Here is an large and nice ammonite of the species Stephanoceras humphriesianum from the Swiss Jura of Sissach. | |||
Location: | Sissach, Kt. Baselland, Swiss | ||
| Size of Ammonite: | about 100 mm | ||
| Age: | Middle Jurasic, Bajocium , Passwang Formation, Sissach Member (about 164, Mill. Jears) | ||