Daughter taxa (time control age-window is: 0-800Ma) | Granddaughter taxa |
| | | | Anfractus variabilis Very small holococcolith with distal surface pierced by 8-10 pores.
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 | | | | Arkhangelskiella confusa Small to medium sized with a <1.5µm thick rim
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| | | | Arkhangelskiella paucipunctata
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| | | | Calyculus noeliae subsp. depressa Calyculus noeliae with low rim.
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| | | | Calyculus noeliae subsp. noeliae
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| | | | Calyculus noeliae subsp. recondita Calyculus noeliae with tall rim.
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| | | | Centosphaera Keeled sphere, constructed from hour glass-shaped crystallites.
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| | | | Centosphaera barbata Keeled sphere, constructed from hour glass-shaped crystallites.
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| | | | Crepidolithus ocellatus Large blocky Crepidolithus ; rim broad; central opening with robust transverse bar and spine-base. Unicyclic in xpl.
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| | | | Crucirhabdus prinsii Additional lateral bars in central area
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| | | | Cyclagelosphaera deflandrei (morphotype A) central area narrow circular to subelliptical; birefringence moderate (typically yellow)
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| | | | Cyclagelosphaera deflandrei (morphotype B) central area wide and elliptical; birefringence high (typically yellow to red)
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| | | | Cylindralithus asymmetricus Elliptical; central area with asymmetric crossbars
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| | | | Hexalithus geometricus Elements with indented edges.
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| | | | Marthasterites bramlettei
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| | | | Nannoconus erbae Cylindrical to barrel-shaped with moderately broad canal (similar to its wall thickness).
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| | | | Obliquipithonella
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 |  | | | Obliquipithonella prasina
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| | | | Obliquipithonella rhombica
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| | | | Orthopithonella
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 |  | | | Orthopithonella geometrica
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 |  | | | Orthopithonella misurinae
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| | | | Perissocyclus fletcheri Small Perissocyclus; plate with two cycles of holes around large spine
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| | | | Petrobrasiella bownii Simialr to P. venata but with distinct base and lacking central core.
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| | | | Prinsiosphaera geometrica
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| | | | Prinsiosphaera triassica subsp. punctata
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| | | | Prinsiosphaera triassica subsp. triassica
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| | | | Proculithus charlotteii
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| | | | Proculithus fistulatus
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| | | | Semihololithus pseudobiskayae
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 |  | | | Similiscutum gephyrion 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.
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| | | | Staurolithites acutiferrus
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 | | | | Stephanolithion laffittei Sub-circular Stephanolithion with central cross and short rim spines
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 |  |  | | Thoracosphaera Spherical calcisphere with wall formed of crystallites with c-axes parallel to wall but otherwise randomly oriented
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 |  |  |  | Thoracosphaera wombatensis
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| | | | Zeugrhabdotus sisyphus
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| | | | Watznaueria communis Watznaueria with narrow central-area spanned by a slightly oblique transverse bar.
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| | | | Lotharingius primigenius Small Lotharingius-like coccolith but lacking V-units and with irregularly formed shield elements
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| | | | Crepidolithus crucifer Crepidolithus with moderately broad rim; central area with axial cross
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 | | | | Truncatoscaphus senarius Relatively broad, angular, Truncatoscaphus with central area spanned by a longitudinal bar and 4 diagonal lateral bars, delimiting 6 holes.
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| | | | Zeugrhabdotus elegans Typical small to medium Zeugrhabdotus - used as default identification by many workers - a modern name would be Z. howei
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| | | | Stradnerlithus cotortuosus Gracile, elliptical Stradnerlithus with central area spanned by a 6 bars (4 diagonal and 2 longitudinal).
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| | | | N. funiculus group
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| | | | Lotharingius imprimus Lotharingius with narrow rim and wide, vacant, central area, inner tube cycle (V-units) only partially developed
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| | | | Stradnerlithus humilis Minute (ca 1.8µm), narrowly elliptical Stradnerlithus with central area spanned by a longitudinal bar and ~12 lateral bars (delimiting 12 holes).
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