pforams@mikrotax - Globigerinelloides aptiensis pforams@mikrotax - Globigerinelloides aptiensis

Globigerinelloides aptiensis


Classification: pf_mesozoic -> Globigerinelloididae -> Globigerinelloides -> Globigerinelloides aptiensis
Sister taxa: G. clavatus, G. gyroidinaeformis ⟩⟨ G. algerianus, G. aptiensis, G. barri, G. ferreolensis ⟩⟨ G. blowi, G. duboisi, G. maridalensis, G. paragottisi ⟩⟨ G. elongatus, G. lobatus, G. sigali, G. sp.

Taxonomy

Citation: Globigerinelloides aptiensis Longoria 1974
taxonomic rank: Species
Basionym: Globigerinelloides aptiensis Longoria 1974
Synonyms:
Taxonomic discussion: Desribed as Globigerinelloides aptiense spelling of name subsequently corrected to Globigerinelloides aptiensis.
Specimens with six chambers are more frequently observed. [copied from Chronos database]

Type images:

Original description: Test as with genus, small size, evolute; peripheral outline subcircular, strongly lobate, five to six chambers in the last whorl; chambers in lateral view spherical to petaloid, increasing gradually in size as added, spherical in apertural view; umbilicus wide; sutures depressed and radial; relict apertures and flaps often observed.

Entries in the Catalog of original descriptions: Globigerinelloides aptiense, Blowiella solida

Character matrix
test outline:Subcircularchamber arrangement:Planispiraledge view:Equally biconvexaperture:Equatorial
sp chamber shape:Inflatedcoiling axis:N/Aperiphery:N/Aaperture border:Thin lip
umb chbr shape:Inflatedumbilicus:Wideperiph margin shape:Moderately roundedaccessory apertures:Relict
spiral sutures:Moderately depressedumb depth:Shallowwall texture:Finely pustuloseshell porosity:Microperforate: <1µm
umbilical or test sutures:Moderately depressedfinal-whorl chambers:5-6 N.B. These characters are used for advanced search. N/A - not applicable

Geological Range:
Notes: FO is recorded as in "H. gorbachikae zone" in Chronos database this has been translated here as H. infracretacea zone but this is a bit rough and ready
Last occurrence (top): within Paraticinella rohri zone (113.22-116.60Ma, top in Aptian stage). Data source: Huber & Leckie, 2011
First occurrence (base): within Globigerinelloides blowi zone (120.55-124.40Ma, base in Barremian stage). Data source: Verga & Premoli Silva, 2003

Plot of range and occurrence data:

References:

Gorbachik, T. N. (1986). Jurassic and early Cretaceous planktonic foraminifera of the south of the USSR. Moscow: Izdat. “Nauka”. 1986: 120-. gs

Longoria, J. F. (1974). Stratigraphic, morphologic and taxonomic studies of Aptian planktonic foraminifera. Revista Española de Micropaleontología. Numero Extraordinario: 5-107. gs

Moullade, M., Bellier, J. -P. & Tronchetti, G. (2002). Hierarchy of criteria, evolutionary processes and taxonomic simplification in the classification of Lower Cretaceous planktonic foraminifera. Cretaceous Research. 23(1): 111-148. gs

Verga, D. & Premoli Silva, I. (2003a). Early Cretaceous planktonic foraminifera from the Tethys: The large many-chambered representatives of the genus Globigerinelloides. Cretaceous Research. 24: 661-690. gs


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Globigerinelloides aptiensis compiled by the pforams@mikrotax project team viewed: 18-7-2024

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