Streptochilus mascarenense


Classification: pf_cenozoic -> Guembelitrioidea -> Chiloguembelinidae -> Streptochilus -> Streptochilus mascarenense
Sister taxa: S. globulosum, S. globigerum, S. latum, S. subglobigerum, S. inglei, S. macdougallae, S. cetacense, S. mascarenense, S. pristinum, S. rockallkiddense, S. tasmanense, S. martini, S. sp.,

Taxonomy

Citation: Streptochilus mascarenense Smart and Thomas 2007
Rank: species
Basionym: Streptochilus mascarenensis
Taxonomic discussion: Streptochilus is a neuter noun (Smart & Thomas 2018, p.501) so the correct form of the species name is mascarenense, although it was given as mascarenensis in the original description.

Catalog entries: Streptochilus mascarenensis,

Type images:

Distinguishing features: Like S. cetacensis but more laterally compressed, more lobulate and pores smaller.

NB These concise distinguishing features statements are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus.
They are being edited as the site is developed and comments on them are especially welcome.

Description

Character matrix

test outline:Subtriangularchamber arrangement:Biserialedge view:Compressedaperture:Interiomarginal
sp chamber shape:Subrectangularcoiling axis:N/Aperiphery:N/Aaperture border:Thin flange
umb chbr shape:Subrectangularumbilicus:N/Aperiph margin shape:Narrowly roundedaccessory apertures:None
spiral sutures:Weakly depressedumb depth:N/Awall texture:Smoothshell porosity:Microperforate: <1µm
umbilical or test sutures:Weakly depressedfinal-whorl chambers:2.0-2.0 N.B. These characters are used for advanced search. N/A - not applicable

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Early Miocene Sub-Epoch (15.97-23.03Ma, top in Burdigalian stage). Data source: Smart & Thomas 2007
First occurrence (base): within Early Miocene Sub-Epoch (15.97-23.03Ma, base in Aquitanian stage). Data source: Smart & Thomas 2007

Plot of occurrence data:

References:

Smart, C. W. & Thomas, E. (2007). Emendation of the genus Streptochilus Brönnimann and Resig 1971 (Foraminifera) and new species from the lower Miocene of the Atlantic and Indian Oceans. Micropaleontology. 53(01-Feb): 73-103, 103 figures, 113 lates, 101 table. gs


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Streptochilus mascarenense compiled by the pforams@mikrotax project team viewed: 22-7-2019

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Short stable page link: http://mikrotax.org/pforams/index.php?id=104228 Go to Archive.is to create a permanent copy of this page - citation notes



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