Antarctissa

Daughter taxa (time control age-window is: 0-800Ma)					Granddaughter taxa
				Antarctissa ballista neptune records:
				Antarctissa capitata neptune records: 1
				Antarctissa clausa neptune records: 1
				Antarctissa cylindrica neptune records: 266
				Antarctissa deflandrei neptune records: 222
				Antarctissa denticulata neptune records: 464	Antarctissa denticulata conradae
				Antarctissa evanida neptune records:
				Antarctissa longa neptune records: 169
				Antarctissa praevema neptune records: 89
				Antarctissa robusta neptune records: 183
				Antarctissa strelkovi neptune records: 293
				Antarctissa whitei neptune records: 52
				Antarctissa sp. neptune records: 34

Taxonomy

Catalog entries: Antarctissa

Original description: Robust two-segmented shell. First segment (cephalis) somewhat smaller than the second (thorax). Lower part of first segment included within the second segment due to the thickness of the second segment wall (bulging part ?). Thorax gradually widening and closed in adult specimens. External differentiation of both segments difficult to observe. Shell walls perforated by numerous rounded pores, shell surface rough with numerous additional spines or horns. Internal skeleton composed of the usual bars, typical of Nassellaria (MB, A, Vert, D, Lr, Ll, Ax). All bars well-differentiated and relativement thick. A and Vert produce cephalic horns that are not clearly distinguished from secundary spines or horns. D, Lr and Ll are linked to the thoracic wall at internally invaginated areas, giving thus a trilobated shape to the thorax. Lr and Ll are symmetrically distributed on both sides of MB, not at all as in Lithomelissa. Axobate very long and rough.
Translated description: In Russian. Translated by J.P.C.]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: Total of ranges of the species in this database
First occurrence (base): within Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Total of ranges of species in this database

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
• Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Lophophaenidae

Antarctissa compiled by the radiolaria@mikrotax project team viewed: 20-9-2024 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/radiolaria/index.php?id=203138 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