Broinsonia ethmoquadrata

Distinguishing features:
Parent taxon (Broinsonia): Outer rim of V-units, with slight clockwise obliquity, visible on distal surface and form dark rim in LM; central-area spanned by an axial cross, grill or perforate plate. 3 tiers visible in side view.
This taxon: axial cross and fine grill

Taxonomy:

Farinacci & Howe catalog pages: B. ethmoquadrata * , B. staytonae *

Distinguishing features:
Parent taxon (Broinsonia): Outer rim of V-units, with slight clockwise obliquity, visible on distal surface and form dark rim in LM; central-area spanned by an axial cross, grill or perforate plate. 3 tiers visible in side view.
This taxon: axial cross and fine grill

Morphology:

Geological Range:
Last occurrence (top): within Campanian Stage (72.05-83.64Ma, top in Campanian stage). Data source: Original description - so real range may be longer
First occurrence (base): within Campanian Stage (72.05-83.64Ma, base in Campanian stage). Data source: Original description - so real range may be longer

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
• (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Broinsonia

Broinsonia ethmoquadrata compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-5-2022 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10122 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