Globigerinelloides

Daughter taxa (time control age-window is: 0-800Ma)
			Globigerinelloides clavatus
			Globigerinelloides gyroidinaeformis
			large E. Cret species with ≥6 chambers
			Globigerinelloides algerianus
			Globigerinelloides aptiensis
			Globigerinelloides barri
			Globigerinelloides ferreolensis
			small, few chambered E. Cret species
			Globigerinelloides blowi
			Globigerinelloides duboisi
			Globigerinelloides maridalensis
			Globigerinelloides paragottisi
			other Early Cret species
			Globigerinelloides elongatus
			Globigerinelloides lobatus
			Globigerinelloides sigali
			Globigerinelloides sp. Specimens which cannot be assigned to established species

Taxonomy

Original description: Test planispiral, in the early stages similar to Globigerinella, in the adult becoming somewhat loosely coiled, the earlier coils all visible in side view; chambers globular in the earlier stages, in the adult with lateral prolongations reaching to and slightly over the preceding coil; wall calcareous, perforate; aperture at the base of the last-formed chamber in the median line.- Upper Cretaceous.

Entries in the Catalog of original descriptions: Globigerinelloides, Blowiella

Distinguishing features:
Parent taxon (Globigerinelloididae): Test planispiral, chambers globular to radially elongate; aperture at the base of the chamber face and equatorial in position, lateral portions of primary aperture may remain open as new chambers are added, forming relict openings around the umbilical region.
This taxon: Test planispirally enrolled, biumbilicate, involute to evolute, lobulate in outline, chambers globular to somewhat elongate in partially evolute species, sutures depressed; wall calcareous, perforate, optically radial; aperture equatorial and interiomarginal, bordered by a narrow imperforate lip, broad and low to moderately arched, the lateral portions remaining open as relict supplementary apertures around the umbilicus when new chambers are added.

Geological Range:
Last occurrence (top): at top of Middle Albian Substage (100% up, 107.6Ma, in Albian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Valanginian Stage (132.60-137.70Ma, base in Valanginian stage). Data source: Total of ranges of species in this database

Plot of range and 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
• Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Globigerinelloididae

Globigerinelloides compiled by the pforams@mikrotax project team viewed: 11-10-2024 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/pforams/index.php?id=110116 Go to Archive.is to create a permanent copy of this page - citation notes

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Comments (2)

 

 

 

 

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François

Posts: 105

Since: Mar 2018

François

Genus is feminine

30.1.4.4. A compound genus-group name ending in the suffix -ites, -oides, -ides, -odes, or -istes is to be treated as masculine unless its author, when establishing the name, stated that it had another gender or treated it as such by combining it with an adjectival species-group name in another gender form.

Globigerinelloides algeriana Cushman and ten Dam, 1948 the type species indicates the feminine.

Another pain in the neck.

9 January 2019 13:26

Jeremy Young

Posts: 535

Since: Jan 2017

Jeremy Young(UK)

Yes its a nasty problem and one which is still controversial (I think because the ICZN ned to be more ambiguous). I am in negotiation on this!

10 January 2019 21:49

 

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