Nannotax3 - ntax_cenozoic - Scyphosphaera brevis

Scyphosphaera brevis

Classification: ntax_cenozoic -> Zygodiscales -> Pontosphaeraceae -> Scyphosphaera -> Scyphosphaera brevis
Sister taxa: S. apsteinii, S. porosa ⟩⟨ S. brevis, S. globulata, S. hamptonii, S. hemirana, S. lagena ⟩⟨ S. campanula, S. intermedia, S. pulcherrima, S. tubifera, S. ventriosa ⟩⟨ S. columella, S. expansa, S. interstincta, S. olla, S. tercisensis, S. tubicena, S. sp.

Siesser1998 pl1-7b.JPG
Siesser1998 pl4-10a.JPG
Siesser1998 pl1-7a.JPG
Siesser1998 pl4-9a.JPG

Taxonomy:

Citation: Scyphosphaera brevis Varol 1984

Rank: Species

Variants:

S. pseudorecurvata Varol, 1989;
S. praeglobulata Varol, 1989;

Taxonomic discussion: These forms intergrade with S. apstenii but fall outside the range of morphotypes sen on extant S. apsteinii coccospheres

Distinguishing features:
Parent taxon (Scyphosphaera): Coccospheres with Pontosphaera-like body coccoliths and equatorial coccoliths with rims elevated into vase-like structures (lopadoliths).
This taxon: Squat low Scyphosphaera with curved walls and wide opening, no collar

Farinacci & Howe catalog pages: S. brevis * , S. pseudorecurvata * , S. praeglobulata *

Morphology:

Size:

Search data:

LITHS: murolith, elliptical, cylindrical, hollow, CA: plate, pores, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,

Lith size: 5->10µm;
Data source notes: lith height from ODs

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

Geological Range:
Notes: S. pseudorecurvata and S. praeglobulata; were described from the Late Miocene, S. brevis from the Middle Miocene, NN6-7
Last occurrence (top): within Late Miocene Sub-Epoch (5.33-11.62Ma, top in Messinian stage). Data source: Varol 1989
First occurrence (base): within NN6 zone (11.90-13.53Ma, base in Serravallian stage). Data source: Varol 1984

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
(NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Scyphosphaera

References:

Siesser, W. G. (1998). Calcareous nannofossil Genus Scyphosphaera: structure, taxonomy, biostratigraphy, and phylogeny. Micropaleontology. 44(4): 351-384. gs

Varol, O. (1984). New Neogene calcareous nannofossil taxa from Malta and southern Turkey. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte. 6: 375-384. gs V O

Varol, O. (1989a). Calcareous nannofossil study of the central and western Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources Earth Sciences. 239-268. gs V O