fossil Ammonite Harpoceras falcifer from Germany

Description

The fossil Ammonite Harpoceras falcifer is 16,5 cm or 6.5 ” in diameter. The Dactylioceras commune Ammonite on the right top is 5 cm or 2 inches in size. There is two more Dactylioceras and also Hildoceras of smaller sizes present.

The fossil Ammonite Harpoceras falcifer and his companions are from the Oelschiefer. Oelschiefer is the name for the Posidonia Shale in the area of Holzmaden. It was used to produce oil from it. Since it was not economically it was not used anymore. Today it is also considered environment unfriendly.

Now the only working quarry in the area is the Kromer quarry in Ohmden next to Holzmaden. A black/grey decorative stone is mined out of the lower parts in the quarry. The fossil comes from above those layers.

There is a primer Capaplex applied to the fossil. This is done in the process of preparation to all fossils from the Holzmaden Shales to make them more stable. A wall hanger is installed in the back of the slab.

Harpoceras falcifer appears in the Lias epsilon 2 (4) Unterer Schiefer and continues up to Lias epsilon 3, Wilder Schiefer.

Information about fossils from Holzmaden can be found for example here:  https://www.mineralienatlas.de/lexikon/index.php/Genehmigungen/holzmadenfossilien.de#Medientabelle100                       Click on the species and pictures open up.