Phormocyrtis striata praexquisita

Taxonomy

Catalog entries: Phormocyrtis striata praexquisita

Original description: Cephalis subspherical, quite small, with very small pores all over, bearing a stout conical rod-like apical horn, three-bladed in the proximal part. Collar stricture with four collar pores internally, not defined externally. Cephalic structure has A, V, two L and D; V extends obliquely upward at quite a low angle, two l are incorporated into the stout septal ring. Two L and D are not connected to lateral ribs. Thorax subhemispherical, quite thick-walled, with subcircular pores with well-developed pore frames, slightly rough surface with nodal points. Abdomen inflated pyramidal, thick-walled, with subcircular, large pores, developing three convexly curved keels from the uppermost or median part of the abdomen, constricted aperture, termination ragged.
Remarks on original description: Equivalent to Phormocyrtis striata exquisita (Kozlova) Westberg et al., 1980, pl.1, fig.13.

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Paleogene Period (23.03-66.04Ma, top in Chattian stage). Data source: Lazarus et al. 2015 - "P age group"
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Lazarus et al. 2015 - "P age group"

Plot of 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: Phormocyrtis striata praexquisita, synonyms included - Phormocyrtis striata praexquisita;
• See also space-time plot :: Samples map :: Parent: Phormocyrtis striata

Phormocyrtis striata praexquisita compiled by the radiolaria@mikrotax project team viewed: 15-10-2024 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/radiolaria/index.php?id=205004 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