Distinguishing features: Specimens not identified to species level
Taxonomy:
Farinacci & Howe catalog pages: Coccolithus opacus * , Lotharingius imprimus *
Distinguishing features: Specimens not identified to species level
Morphology remarks: We are using this category for images of specimens which can be identified to generic level but have not been definitively assigned to a single species.
Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in stage). Data source:
Plot of occurrence data:
Bown, P. R. (1987a). Taxonomy, evolution, and biostratigraphy of Late Triassic-Early Jurassic calcareous nannofossils. Special Papers in Palaeontology. 38: 118-. gs Crux, J. A. (1987b). Early Jurassic calcareous nannofossil biostratigraphic events. Newsletters on Stratigraphy. 17: 79-100. gs Menini, A., Mattioli, E., Spangenberg, J. E., Pittet, B. & Suan, G. (2018). New calcareous nannofossil and carbon isotope data for the Pliensbachian/Toarcian boundary (Early Jurassic) in the western Tethys and their paleoenvironmental implications. Newsletters on Stratigraphy. -. gs Perch-Nielsen, K. (1984). Validation of new combinations. INA Newsletter. 6(1): 42-46. gs Prins, B. (1969). Evolution and stratigraphy of cocolithinids from the Lower and Middle Lias. In, Bronnimann, P. & Renz, H. H. (eds) Proceedings of the First International conference on Planktonic Microfossils, Geneva 1967. E. J. Brill, Leiden 547-558. gs Rood, A. P., Hay, W. W. & Barnard, T. (1973). Electron microscope studies of Lower and Middle Jurassic coccoliths. Eclogae Geologicae Helvetiae. 66: 365-382. gs Stradner, H. (1961). Vorkommen von Nannofossilien im Mesozoikum und AlttertiƤr. Erdoel-Zeitschrift. 77(3): 77-88. gsReferences:
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Lotharingius sp. compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 12-12-2019
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