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]
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Genus: | Calpionella Lorenz, 1902
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Etymology
editThe name is derived from the Greek "κάλπις", meaning "water jug".
Biostratigraphic significance
editThe first occurrence of the species Calpionella alpina marks the beginning of the Berriasian and thus Cretaceous.
Distribution
editFossils of the genus have been found in:[1]
- Jurassic
- Guasasa Formation, Cuba
- Stramberk Formation, Czech Republic
- Cretaceous
- Puke, Albania
- Argiles de Ghriss Formation, Algeria
- Steinmühl Formation, Austria
- Abenaki Formation, Nova Scotia, Canada
- Guasasa Formation, Cuba
- Lake Rożnów, Poland
- Lapos Formation, Romania
- Miravetes and Tollo Formations, Spain
References
edit- ^ a b 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.