Calpionella


Calpionella is an extinct genus of calpionellid, a group of single-celled eukaryotes. Their fossils are found in rocks of Upper Jurassic to Lower Cretaceous age.

Etymology

The name is derived from Greek κάλπις, kálpis 'water jug'.

Biostratigraphic significance

The first occurrence of the species Calpionella alpina marks the beginning of the Berriasian and thus Cretaceous.

Distribution

Fossils of the genus have been found in:
;Jurassic
;Cretaceous