Daughter taxa (time control age-window is: 0-800Ma)![]() | Granddaughter taxa | ||||
![]() | ![]() | Discoaster exilis Small central-area; usually with weak distal and proximal bosses; bifurcations acutely angled in plan-view | Discoaster cauliflorus ![]() Discoaster moorei ![]() Discoaster extensus ![]() Discoaster discissus ![]() Discoaster signus ![]() Discoaster apetalus ![]() | ||
![]() | ![]() | ![]() | Discoaster bollii Similar to D. exilis but with large distal boss, small proximal boss, and wide central-area, and usually smaller (<10µm). | ||
![]() | Discoaster petaliformis Similar to D. exilis but with very large mushroom-shaped distal boss and distinct proximal boss. Central-area narrow. |
Taxonomy:
Farinacci & Howe catalog pages: Discoaster exilis group [no catalog entry yet]
Search data:
Lith size: 0->0µm; |
Geological Range:
Last occurrence (top): at top of NN11 zone (100% up, 5.6Ma, in Messinian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within NN4 zone (14.91-17.95Ma, base in Burdigalian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
![]() |
D. exilis group compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 6-12-2023
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1547 Go to Archive.is to create a permanent copy of this page - citation notes |
![]() |
This policy contains information about your privacy. By posting, you are declaring that you understand this policy:
This policy is subject to change at any time and without notice.
These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:
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