Biscutum melaniae


Classification: ntax_mesozoic -> Podorhabdales -> Biscutaceae -> Biscutum -> Biscutum melaniae
Sister taxa: B. constans, B. ellipticum ⟩⟨ B. coronum, B. dekaenelii, B. magnum, B. melaniae ⟩⟨ B. arrogans, B. asymmetricum, B. boletum, B. dissimilis, B. zulloii ⟩⟨ B. hattneri, B. notaculum, B. virginica ⟩⟨ B. gaultensis, B. thurowii ⟩⟨ B. davyi, B. depravatum, B. dorsetensis, B. dubium, B. erismatum, B. grande, B. intermedium, B. planum, B. profundum, B. sp.

Distinguishing features: Medium to large (7-10 µm), broadly elliptical, with a wide dark shield and a small, highly birefringent closed central area


Taxonomy:

Citation: Biscutum melaniae (Górka, 1957) Reinhardt, 1969
Rank: Species
Basionym: Tremalithus melaniae Górka, 1957
Synonyms:

Farinacci & Howe catalog pages: T. melaniae * , B. harrisonii * , C. panis * , C. oregus *

Distinguishing features: Medium to large (7-10 µm), broadly elliptical, with a wide dark shield and a small, highly birefringent closed central area

Search data:
TagsLITHS: placolith, elliptical, CA: ca_disjunct, closed, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
MetricsLith size: 7->10µm;
Data source notes: illustrated specimens & original description of C. oregus
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: LAD is later in N Europe (UC9a) than in Indian Ocean (UC7) - Burnett 1998
Last occurrence (top): within Paleocene Epoch (55.96-66.04Ma, top in Thanetian stage). Data source: Burnett 1998
First occurrence (base): in upper part of UC7 zone (80% up, 93.1Ma, in Turonian stage). Data source: Burnett 1998, fig.6.3

Plot of occurrence data:

References:

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

Edwards, A. R. & Perch-Nielsen, K. (1975). Calcareous nannofossils from the southern Southwest Pacific, Deep Sea Drilling Project, Leg 29. Initial Reports of the Deep Sea Drilling Project. 29: 469-539. gs V O

Edwards, A. R. (1973). Key species of New Zealand calcareous nannofossils. New Zealand Journal of Geology and Geophysics. 16: 68-89. gs

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

Jiang, M. -J. & Gartner, S. (1986). Calcareous nannofossil succession across the Cretaceous/Tertiary boundary in east-central Texas. Micropaleontology. 32(3): 232-255. gs

Reinhardt, P. (1969). Neue Coccolithen-Arten aus der Kreide. Monatsberichte der Deutschen Akademie der Wissenschaften zu Berlin. 11: 932-938. gs

Thibault, N. (2010). Calcareous nannofossils from the boreal Upper Campanian- Maastrichtian chalk of Denmark. Journal of Nannoplankton Research. 31(1): 39-56. gs V O

Varol, O. (1989c). Palaeocene calcareous nannofossil biostratigraphy. In, Crux, J. A. & van Heck, S. E. (eds) Nannofossils and their applications: Proceedings of the 2nd INA Conference, London 1987. British Micropalaeontological Society Publication Series. 265-310. gs V O


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Biscutum melaniae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 27-1-2021

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10087 Go to Archive.is to create a permanent copy of this page - citation notes



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