Quadrum octobrachium

Distinguishing features:
Parent taxon (Quadrum): Stellate to cubiform nannoliths with walls formed from two cycles of 4-9 elements and no central opening or diaphragm. When cubiform, the elements are joined along sutures that go out to the mid-point of the 'cube' edges.
This taxon: Quadrum with 8 elements per cycle

Taxonomy:

Farinacci & Howe catalog pages: Q. octobrachium *

Distinguishing features:
Parent taxon (Quadrum): Stellate to cubiform nannoliths with walls formed from two cycles of 4-9 elements and no central opening or diaphragm. When cubiform, the elements are joined along sutures that go out to the mid-point of the 'cube' edges.
This taxon: Quadrum with 8 elements per cycle

Morphology:

Geological Range:
Last occurrence (top): within Turonian Stage (89.77-93.90Ma, top in Turonian stage). Data source: Burnett 1998
First occurrence (base): within Turonian Stage (89.77-93.90Ma, base in Turonian stage). Data source: Burnett 1998

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: Quadrum octobrachium, synonyms included - Quadrum octobrachium;
• See also space-time plot :: Samples map :: Parent: Quadrum

Quadrum octobrachium compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 2-7-2022 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10973 Go to Archive.is to create a permanent copy of this page - citation notes

Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information

1000

--- Argentina Australia Austria Belgium Brazil Canada Chile China Czech Republic Denmark Egypt France Georgia Germany Greece Hungary India Iran Israel Italy Japan Malaysia Mexico Netherlands New Zealand Nigeria Norway Philippines Poland Portugal Romania Russia Spain Sweden Switzerland Tanzania UK US --- Afghanistan Albania Algeria Andorra Angola Armenia Azerbaijan Bahrain Bangladesh Belarus Belize Benin Bermuda Bhutan Bolivia Bosnia and Herzegovina Botswana Brunei Bulgaria Burkina Faso Burundi Cambodia Cameroon Central African Republic Chad Colombia Congo Costa Rica Croatia Cuba Cyprus Djibouti Dominican Republic Ecuador El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falklands Finland Gabon Gambia Ghana Greenland Guatemala Guinea Guinea-Bissau Guyana Haiti Honduras Hong Kong Iceland Indonesia Iraq Ireland Ivory Coast Jamaica Jordan Kazakhstan Kenya Kosovo Kuwait Kyrgyzstan Laos Latvia Lebanon Lesotho Liberia Libya Liechtenstein Lithuania Madagascar Malawi Mali Mauritania Moldova Monaco Mongolia Montenegro Morocco Mozambique Myanmar Namibia Nepal Nicaragua Niger North Korea Oman Pakistan Palestine Panama Papua New Guinea Paraguay Peru Puerto Rico Qatar Rwanda San Marino Saudi Arabia Senegal Serbia Sierra Leone Singapore Slovakia Slovenia Somalia South Africa South Korea South Sudan Sri Lanka Sudan Suriname Swaziland Syria Taiwan Tajikistan Thailand Togo Trinidad and Tobago Tunisia Turkey Turkmenistan Uganda Ukraine United Arab Emirates Uruguay Uzbekistan Venezuela Vietnam Western Sahara Yemen Zambia Zimbabwe

Notify me of new comments via email.

Remember my form inputs on this computer.

Powered by Commentics

Please enter at least one item.

Item:

Item:

Item:

Item:

Item:

Please enter at least one item.

Item:

Item:

Item:

Item:

Item:

Please enter the link of the website

Optionally you can add display text

Please enter the email address

Optionally add any display text

Please enter the link of the image

Please enter the link of the video