Trochites
Trochites (from the Greek tróchos , wheel) are the fossilized , ring- or wheel- shaped limbs from which the stem of the sea lilies is built. Isolated stalk pieces are grouped together to form the collective or partial genus Entrochus .
Trochites in the narrower sense are the stalk members of the species Encrinus liliiformis , which occur in the limestone from the time of the older division of the upper shell limestone (mo1) in the Germanic basin . This special form of crinoid limestone is known as trochitic limestone . The trochitic limestone is a classic threshold facies.
The trochites form, together with other crinoid remains, part of the limestone , which is z. B. found in many rocks of the Dolomites and the Northern Limestone Alps .
After their characteristic accumulation, the names of individual rocks were combined with this fossil name. These are for example:
- Erkeroder Trochitenkalk , Erkerode near Braunschweig in Lower Saxony
- Hoheneggelsener Trochitenkalk , Hoheneggelsen near Hildesheim in Lower Saxony
- Bollard Trochitenkalk , Polle near Holzminden in Lower Saxony