Nannotax3 - ntax_mesozoic - Lapideacassis bispinosa

Lapideacassis bispinosa

Classification: ntax_mesozoic -> Nannoliths inc sedis -> Lapideacassaceae -> Lapideacassis -> Lapideacassis bispinosa
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, one near-vertically orientated and one at 45 degress.

TypeFig Lapideacassis bispinosa.jpg
Bown2005-ODP198 Pl13-10.jpg
TypeFig Lapideacassis bispinosa LM.jpg

Taxonomy:

Citation: Lapideacassis bispinosa (Perch-Nielsen in Perch-Nielsen & Franz, 1977) Burnett, 1997

Rank: Species

Basionym: Scampanella bispinosa Perch-Nielsen in Perch-Nielsen & Franz, 1977

Farinacci & Howe catalog pages: S. bispinosa *

Distinguishing features: Lapideacassis with two apical spines, one near-vertically orientated and one at 45 degress.

Search data:

Tags	LITHS: nannolith-radiate, circular, cylindrical, hollow, CA: process, closed, CROSS-POLARS: R-prominent,
Metrics	Lith size: 6->10µm; Segments: 6->10; 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 NP15 zone (42.87-46.29Ma, top in Lutetian stage). Data source: Perch-Nielsen & Franz 1977
First occurrence (base): within Coniacian Stage (86.26-89.77Ma, base in Coniacian 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 bispinosa, synonyms included - Lapideacassis bispinosa; Scampanella bispinosa;
See also space-time plot :: Samples map :: Parent: Lapideacassis

References:

Bown, P. R. (2005c). Early to Mid-Cretaceous Calcareous Nannoplankton from the Northwest Pacific Ocean, Leg 198, Shatsky Rise. Proceedings of the Ocean Drilling Program, Scientific Results. 198: 1-82. gs V O

Burnett, J. A. (1997c). New species and new combinations of Cretaceous nannofossils and a note on the origin of Petrarhabdus (Deflandre) Wise & Wind. Journal of Nannoplankton Research. 19(2): 133-146. gs V O

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