Acacus Sandstone

The Acacus Sandstone is a geologic formation in the Ghat District, southwestern Libya. The unit preserves fossils dating back to the Llandovery epoch of the early Silurian period.

Fossil content
The formation has provided the following fossils:

Trilobites

 * Trilobita indet.

Eurypterids

 * Carcinosoma sp.
 * Pterygotus sp.

Invertebrates

 * Mollusca indet.

Ichnofossils

 * Arthrophycus sp.
 * Cruziana sp.
 * Cubichnia sp.
 * Dimorphichnus sp.
 * Paleophycus sp.
 * Pelecypodichnus sp.
 * Rusophycus sp.