Nannotax3 - ntax_mesozoic

Nephrolithus

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

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

Daughter taxa (time control age-window is: 0-800Ma)		Granddaughter taxa
	Nephrolithus corystus Central area with 2-60 perforations each defined by rather irregular elongate crystals
	Nephrolithus frequens Central area with 2-15 perforations each surrounded by neat rings of rhombic elements	N. frequens subsp. frequens N. frequens subsp. miniporus
	Nephrolithus sp. 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

Search data:

Tags	LITHS: placolith, asymmetric, CA: ca_disjunct, plate, pores, closed, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Metrics	Lith size: 4->16µm; Data source notes: size range of included species

The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): at top of Maastrichtian Stage (100% up, 66Ma, in Maastrichtian stage). Data source: Total of range of species in this database
First occurrence (base): in upper part of Campanian Stage (59% up, 76.8Ma, in Campanian stage). Data source: Total of range of species in this database

Plot of occurrence data:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Axopodorhabdaceae

References:

Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 132-199. gs V O

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

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. gs V O

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

Nephrolithus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-4-2021

Taxon Search:

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10796 Go to Archive.is to create a permanent copy of this page - citation notes

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