Daughter taxa (time control age-window is: 0-800Ma) | Granddaughter taxa | ||||
Discoaster sanmiguelensis Similar to D. exilis , but with wide central area, distal boss relatively small, confined to the central area | |||||
Discoaster musicus Similar to D. exilis , but with wide central area and large distal boss, prominent sutural ridges extending between the rays. | |||||
Discoaster virginianus Small to medium sized with large central area and short arms, stem on both proximal and distal sides. Resembles Catinaster | |||||
Discoaster micros Small discoaster with short arms; bifurcations almost touching and thicker than the arms |
Taxonomy:
Farinacci & Howe catalog pages:
Search data:
Lith size: 0->0µm; |
Geological Range:
Last occurrence (top): at top of NN9 zone (100% up, 9.5Ma, in Tortonian 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. musicus group compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 8-9-2024
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1544 Go to Archive.is to create a permanent copy of this page - citation notes |
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