Classification: Mesozoic -> hidden -> deleted
Sister taxa: deleted, sandbox,

Daughter taxa: (blue => in age window 0-800Ma) Granddaughter taxa
Calyculus noeliae with low rim.

Calyculus noeliae with tall rim.

Keeled sphere, constructed from hour glass-shaped crystallites.

Keeled sphere, constructed from hour glass-shaped crystallites.

Large blocky Crepidolithus ; rim broad; central opening with robust transverse bar and spine-base. Unicyclic in xpl.

Elliptical; central area with asymmetric crossbars

Elements with indented edges.

Cylindrical to barrel-shaped with moderately broad canal (similar to its wall thickness).

Medium sized biscutacean with wide shields and very narrow central area spanned by a transverse-bar-like structure. Unicyclic or weakly bicyclic image in XPL with clearly visible elements.

Sub-circular Stephanolithion with central cross and short rim spines

Spherical calcisphere with wall formed of crystallites with c-axes parallel to wall but otherwise randomly oriented

Watznaueria with narrow central-area spanned by a slightly oblique transverse bar.

Small Lotharingius-like coccolith but lacking V-units and with irregularly formed shield elements

Relatively broad, angular, Truncatoscaphus with central area spanned by a longitudinal bar and 4 diagonal lateral bars, delimiting 6 holes.

Gracile, elliptical Stradnerlithus with central area spanned by a 6 bars (4 diagonal and 2 longitudinal).

Lotharingius with narrow rim and wide, vacant, central area, inner tube cycle (V-units) only partially developed


Farinacci & Howe catalog pages:

Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in stage). Data source:

Plot of occurrence data:



deleted compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-8-2019

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