Eohastigerinella

Daughter taxa (time control age-window is: 0-800Ma)
			Eohastigerinella watersi
			Eohastigerinella sp. Specimens which cannot be assigned to established species

Taxonomy

Original description: Translation from the Russian. - Test planispiral, in the early stage of the microspheric generation trochoidal, not completely involute. Chambers elongate. lobate, digitate, with traces of attached spicules. Aperture slitlike basal. Wall thin, finely canceIlate. perforate.

Family Hantkenininidae. Upper Cretaceous-Eocene.

Entries in the Catalog of original descriptions: Eohastigerinella

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 and involute, biumbilicate, early chambers globular and inflated, later ones radially elongate, and final one or two chambers clavate, sutures distinct, depressed; wall calcareous, moderately coarsely perforate, radial, surface pitted; aperture equatorial, an interiomarginal arch bordered with a distinct lip, lateral extremities of the aperture commonly remaining open as relict supplementary apertures around the umbilicus as new chambers are added.

Geological Range:
Last occurrence (top): in upper part of Santonian Stage (79% up, 84.2Ma, in Santonian stage). Data source: Total of range of species in this database
First occurrence (base): near top of Coniacian Stage (87% up, 86.7Ma, in Coniacian stage). Data source: Total of range 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

Eohastigerinella compiled by the pforams@mikrotax project team viewed: 24-9-2023 Taxon Search: Advanced Search Short stables page link: https://mikrotax.org/pforams/index.php?id=110098 Go to Archive.is to create a permanent copy of this page - citation notes

Add Comment

* Required information

Notify me of new comments via email

Remember my form inputs on this computer

I have read and agree to the terms and conditions

Powered by Commentics

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