San Lorenzo Formation, Bolivia
# San Lorenzo Formation, Bolivia

The San Lorenzo Formation is a Dapingian geologic formation of southern Bolivia. The dark gray, greenish, and black shale with thin intercalations of white-yellow quartzites were deposited in an open marine submarine fan environment.

## Fossil content

The formation has provided the following fossils:

* Didymograptus nitidus
* Dinorthis obispoensis
* Orthambonites calligramma
* Peelerophon oehlerti
* Tetragraptus quadribrachiatus
* Thysanopyge argentina
* Yutagraptus vdeflexus
* Phyllograptus cf. typus
* Dictyonema sp.
* Endoceras sp.
* Lecanospira sp.
* Megalaspidella sp.
* Pachendoceras sp.
