Calpionellites
# Calpionellites

Calpionellites is an extinct genus of single celled eukaryotes. Their fossils are found in rocks dating to the Valanginian stage of the Early Cretaceous.

## Biostratigraphic significance

The first occurrence of the species Calpionellites darderi marks the beginning of the Valanginian and thus end of the Berriasian.

## Distribution

Fossils of the genus have been found in:

* Puke, Albania
* Steinmühl Formation, Austria
* Guasasa Formation, Cuba
* Lake Rożnów, Poland
* Lapos Formation, Romania
* Miravetes and Tollo Formations, Spain
