Nephrolithus


Classification: Mesozoic -> Podorhabdales -> Axopodorhabdaceae -> Nephrolithus
Sister taxa: Axopodorhabdus, Cribrocorona, Cribrosphaerella, Dodekapodorhabdus, Ethmorhabdus, Hemipodorhabdus, Hexapodorhabdus, Nephrolithus, Octocyclus, Octopodorhabdus, Perissocyclus, Podorhabdus, Psyktosphaera, Teichorhabdus, Tetrapodorhabdus,

Distinguishing features: Reniform; central-area net with two to numerous pores


Daughter taxa: (blue => in age window 0-300Ma) Granddaughter taxa
Central area with 2-60 perforations each defined by rather irregular elongate crystals

Central area with 2-15 perforations each surrounded by neat rings of rhombic elements

Specimens not identified to species level

Taxonomy:

Citation: Nephrolithus Górka 1957
Rank: Genus
Type species: Nephrolithus frequens Górka, 1957

Farinacci & Howe catalog pages: Nephrolithus + *

Distinguishing features: Reniform; central-area net with two to numerous pores

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Total of range of species in this database
First occurrence (base): within Campanian Stage (72.05-83.64Ma, base in Campanian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Burnett, J.A., (1998). Upper Cretaceous. In: Bown, P.R. (Editor), Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publications Series. Chapman & Hall, London, pp. 132-199.

Górka, H., (1957). Les Coccolithophoridés du Maestrichtien supérieur de Pologne. Acta Palaeontologica Polonica, 2: 239-284.

Wind, F.H. & Wise, S.W., (1983). Correlation of upper Campanian-lower Maestrichtian calcareous nannofossil assemblages in drill and piston cores from the Falkland Plateau, southwest Atlantic Ocean. Initial Reports of the Deep Sea Drilling Project, 71: 551-563.

Wind, F.H., (1983). The genus Nephrolithus Górka, 1957 (Coccolithophoridae). Journal of Paleontology, 57: 157-161.


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Nephrolithus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-7-2018

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