Nannotax3 - ntax_mesozoic - Lapideacassis cornuta

Lapideacassis cornuta

Classification: ntax_mesozoic -> Nannoliths inc sedis -> Lapideacassaceae -> Lapideacassis -> Lapideacassis cornuta
Sister taxa: L. asymmetrica, L. bispinosa, L. cornuta, L. glans, L. magnifica, L. mariae, L. tricornus, L. trispina, L. sp.

Distinguishing features: Lapideacassis with two, apical spines at about 45 degrees.

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Taxonomy:

Citation: Lapideacassis cornuta (Forchheimer & Stradner, 1973) Wind & Wise in Wise & Wind, 1977

Rank: Species

Basionym: Scampanella cornuta Forchheimer & Stradner, 1973

Farinacci & Howe catalog pages: S. cornuta *

Distinguishing features: Lapideacassis with two, apical spines at about 45 degrees.

Search data:

Tags	LITHS: nannolith-radiate, circular, cylindrical, hollow, CA: pores, process, closed, CROSS-POLARS: R-prominent,
Metrics	Lith size: 7->9µm; Segments: 7->9; Data source notes: length (excluding spines) from illustrated specimens; elem numbers from count on SEM image and extend range by +-2

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

Geological Range:
Last occurrence (top): within Campanian Stage (72.05-83.64Ma, top in Campanian stage). Data source: Burnett 1998
First occurrence (base): within Albian Stage (100.50-112.95Ma, base in Albian stage). Data source: Burnett 1998

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
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
Taxon plotted: Lapideacassis cornuta, synonyms included - Lapideacassis cornuta; Scampanella cornuta;
See also space-time plot :: Samples map :: Parent: Lapideacassis

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

Forchheimer, S. & Stradner, H. (1973). Scampanella, a new genus of Cretaceous nannofossils. Verhandlungen der Geologischen Bundesanstalt (Wien). 2: 286-289. gs V O

Perch-Nielsen, K. & Franz, H. E. (1977). Lapideacassis and Scampanella, calcareous nannofossils from the Paleocene at sites 354 and 356, DSDP Leg 39, Southern Atlantic. Initial Reports of the Deep Sea Drilling Project. 39: 849-862. gs V O

Wise, S. W. & Wind, F. H. (1977). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 36 drilling on the Falkland Plateau, south-west Atlantic sector of the Southern Ocean. Initial Reports of the Deep Sea Drilling Project. 36(269-491): -. gs V O