Globotruncana linneiana

Taxonomy

Original description:

Rosalina. Testa orbiculato-depressa, rugosa, alba, margine bicarinata, umbilicata, umbilico magno; spira subplana, anfractibus tribus distinctis; loculis sex lateraliter compressis, supra subtusque limbatis.
Coquille suborbiculaire, très déprimée, bicarénée sur son pourtour, un peu concave en dessous, fortement ombiliquée, mais sans disque ombilical; la surface en est très rugueuse. Spire à peine saillante, bien marquée par les bordures des loges; composée de trois tours, dont le premier est en partie masqué par des rugosités. Loges comprimées au nombre de six partour, oblongues, aplaties en dessous; obliques, bordées tout autour d'un bourrelet; endessous elles sont plus particulièrement bordées du côté extérieur et ombilical, mais les bourrelets sont moins marqués qu'en dessus. Ouverture sur le bord des loges dans l'ombilic. Couleur blanchâtre uniforme.

Translated from French: "Rosaline. Test as a flat circle, rugose, white, double-keeled profile, with umbilicus, wide; trochospire nearly flat, distinct septa; six laterally compressed chambers, rimmed on spiral and umbilical sides. Size: diameter is 1/4 mm large. Shell is sub-circular, much depressed; periphery is double-keeled, umbilical side is slightly concave, umbilicus is well marked, but without umbilical plate; surface is rugose. Spiral side is slightly raised, well delimited by chamber edges; the test has three whorls, the first one being hidden by rugosities. On the last whorl there are six compressed chambers, oblong, flattened on umbilical side; they are oblique and surrounded by a ridge; on umbilical side, chambers have a rim well marked on external part, but less marked than on spiral side. An aperture opens in umbilical area from internal part of each chamber. Colour is uniformly white. 

Entries in the Catalog of original descriptions: Rosalina linneiana, Globotruncana lapparenti depressa, Globotruncana erevanica, Globotruncana lapparenti longilocula, Globotruncana (Globotruncana) majzoni, Globotruncana sudrensis parallela, Globotruncana quadrata, Globotruncana riojai, Pulvinulina tricarinata, Globotruncana linneiana obliqua, Globigerina (Globotruncana) marginata linnaeana

Geological Range:
Last occurrence (top): near base of P. hariaensis zone (10% up, 67.5Ma, in Maastrichtian stage). Data source: Huber et al., 2008
First occurrence (base): at base of Santonian Stage (0% up, 85.7Ma, in Coniacian stage). Data source: Petrizzo et al., 2017

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
• Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
• Taxon plotted: Globotruncana linneiana, synonyms included - Globigerina marginata linnaeana; Globotruncana colombiana; Globotruncana depressa; Globotruncana desioi; Globotruncana erevanica; Globotruncana lapparenti depressa; Globotruncana lapparenti longilocula; Globotruncana linnaeana; Globotruncana linneiana; Globotruncana linneiana obliqua; Globotruncana linneiana obliquus; Globotruncana loeblichi; Globotruncana longilocula; Globotruncana majzoni; Globotruncana obliqua; Globotruncana parallela; Globotruncana riojai; Globotruncana sudrensis parallela; Globotruncana tricarinata; Globotruncana tricarinata colombiana; Globotruncana tricarinata desioi; Pulvinulina tricarinata;
• See also space-time plot :: Samples map :: Parent: Globotruncana

Globotruncana linneiana compiled by the pforams@mikrotax project team viewed: 13-2-2026 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/pforams/index.php?id=110163 Go to Archive.is to create a permanent copy of this page - citation notes

Add Comment

* Required information

Comment

Name

Email

Country

Captcha

Notify me of new comments via email

Remember my form inputs on this computer

I have read and agree to the terms and conditions

x

Insert Bullet List

Please enter at least one item.

Item:

Item:

Item:

Item:

Item:

x

Insert Numeric List

Please enter at least one item.

Item:

Item:

Item:

Item:

Item:

x

Insert Image

Please enter the link of the image

x

Privacy Policy

This policy contains information about your privacy. By posting, you are declaring that you understand this policy:

• Your name, rating, website address, town, country, state and comment will be publicly displayed if entered.
• Aside from the data entered into these form fields, other stored data about your comment will include:
  • Your IP address (not displayed)
  • The time/date of your submission (displayed)
• Your email address will not be shared. It is collected for only two reasons:
  • Administrative purposes, should a need to contact you arise.
  • To inform you of new comments, should you subscribe to receive notifications.
• A cookie may be set on your computer. This is used to remember your inputs. It will expire by itself.

This policy is subject to change at any time and without notice.

x

Terms and Conditions

These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:

• Although the administrator will attempt to moderate comments, it is impossible for every comment to have been moderated at any given time.
• You acknowledge that all comments express the views and opinions of the original author and not those of the administrator.
• You agree not to post any material which is knowingly false, obscene, hateful, threatening, harassing or invasive of a person's privacy.
• The administrator has the right to edit, move or remove any comment for any reason and without notice.

Failure to comply with these rules may result in being banned from submitting further comments.

These terms and conditions are subject to change at any time and without notice.

Comments

No comments yet. Be the first!

x