|Daughter taxa (time control age-window is: 0-800Ma)|
Small circular to elliptical placoliths with narrow central area and tube-elements extended distally to form a flower-like distal structure.
Specimens which cannot be assigned to any established species
Distinguishing features: Very small circular to elliptical placoliths with narrow central area and tube-elements extended distally to form an elevated flower-like distal structure.
Farinacci & Howe catalog pages: Futyania *Search data:
|Tags||LITHS: placolith, circular, CA: ca_conjunct, process, closed, |
CSPH: equant, CROSS-POLARS: V-prominent, R-prominent,
|Metrics||Lith size: 1->2µm; Liths per sphere: 40->60|
Data source notes: my obs
Last occurrence (top): in lower part of Danian Stage (22% up, 65.1Ma, in Danian stage). Data source: Total of range of species in this database
First occurrence (base): near base of Danian Stage (6% up, 65.8Ma, in Danian stage). Data source: Total of range of species in this database
Plot of occurrence data:
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