Calpionella

Calpionella; Temporal range: Late Jurassic-Early Cretaceous; ~145.5–136 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
(unranked):	SAR
(unranked):	Alveolata
Family:	Calpionellidae
Genus:	Calpionella; Lorenz, 1902
Species
	C. alpina Lorenz, 1902; C. elliptica Cadisch, 1932;

Calpionella is an extinct genus of calpionellid, a group of single celled eukaryotes.^[1] Their fossils are found in rocks of Upper Jurassic to Lower Cretaceous age.^[2]

^ Calpionella at Fossilworks.org
^ Bolli, Hans M.; Saunders, John B.; Fancett, Katharina Perch-Nielsen, eds. (1989). Plankton stratigraphy (1st paperback ed.). Cambridge [Cambridgeshire]: Cambridge University Press. ISBN 978-0521367196.