|Daughter taxa (time control age-window is: 0-800Ma)|
Elliptical placolith with narrow rim and wide central-area spanned by disjunct transverse bridge.
Specimens which cannot be assigned to established species
Distinguishing features: Rim narrow and central area spanned by an elevated bridge
Farinacci & Howe catalog pages: Solidopons *
Morphology: Monospecific genus, see species S. petrae.
|Tags||LITHS: placolith, elliptical, CA: bar, |
CSPH: equant, monomorphic, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
|Metrics||Lith size: 4->8µm;|
Last occurrence (top): in mid part of Tortonian Stage (48% up, 9.5Ma, in Tortonian stage). Data source: Total of range of species in this database
First occurrence (base): in lower part of Burdigalian Stage (32% up, 19Ma, in Burdigalian stage). Data source: Total of range of species in this database
Plot of occurrence data:
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