Marne de Flize
# Marne de Flize

The Marne de Flize is a geologic formation in France. It preserves fossils dating back to the Toarcian stage of the Jurassic period.

## Description

The finely bedded blue-grey shales contain limestone lenses up to one metre in thickness La Croisette. The Marne de Flize is referred to the early Toarcian (Tenuicostatum and Serpentinum zones according to Mouterde, 1980). It is therefore coeval with the Posidonia Shale of southern Germany.

## Fossil content

The following fossils were reported from the formation:

### Vertebrates

**Reptiles**

* cf. Dorygnathus sp.
* Ichthyosauria indet.

**Fish**

* Osteichthyes indet.

### Invertebrates

* Crustacea indet.
* Bivalvia indet.
* Teuthidea indet.

**Ammonites**

* Dactylioceras sp.
* Harpoceras sp.

### Flora

* Plantae indet.
