| Daughter taxa: (blue => in age window 0-800Ma) | Granddaughter taxa |
 | | | | Small to medium sized with a <1.5µm thick rim
|
|
| | | |
|
|
| | | | 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.
|
|
| | | | Additional lateral bars in central area
|
|
| | | | central area narrow circular to subelliptical; birefringence moderate (typically yellow)
|
|
| | | | central area wide and elliptical; birefringence high (typically yellow to red)
|
|
| | | | Elliptical; central area with asymmetric crossbars
|
|
| | | | Elements with indented edges.
|
|
| | | |
|
|
| | | | Cylindrical to barrel-shaped with moderately broad canal (similar to its wall thickness).
|
|
| | | |
|
|
 |  | | |
|
|
| | | |
|
|
| | | |
|
|
 |  | | |
|
|
 |  | | |
|
|
| | | | Small Perissocyclus; plate with two cycles of holes around large spine
|
|
| | | |
|
|
| | | |
|
|
| | | |
|
|
| | | |
|
|
| | | |
|
|
| | | |
|
|
 |  | | | 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
|
|
| | | | Crepidolithus with moderately broad rim; central area with axial cross
|
|
 | | | | Relatively broad, angular, Truncatoscaphus with central area spanned by a longitudinal bar and 4 diagonal lateral bars, delimiting 6 holes.
|
|
| | | | Typical small to medium Zeugrhabdotus - used as default identification by many workers - a modern name would be Z. howei
|
|
| | | | 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
|
|
| | | | Minute (ca 1.8µm), narrowly elliptical Stradnerlithus with central area spanned by a longitudinal bar and ~12 lateral bars (delimiting 12 holes).
|
|
