Parent taxon (Tribrachiatus): Solid nannoliths with three rays that typically have terminal bifurcations.
This taxon: Specimens which cannot be assigned to any established species
Farinacci & Howe catalog pages:
|Lith size: 0->0µm;|
Last occurrence (top): within NP12 zone (50.5-53.7Ma, top in Ypresian stage). Data source: same as genus
First occurrence (base): within NP10 zone (54.17-55.86Ma, base in Ypresian stage). Data source: same as genus
Plot of occurrence data:
Short stables page link: https://mikrotax.org/Nannotax3/index.php?id=1432 Go to Archive.is to create a permanent copy of this page - citation notes
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