|Daughter taxa (time control age-window is: 0-800Ma)||Granddaughter taxa|
|molischii type; XCs “undulating” planoliths, confined to imbricate circlet around flagellar pole. CFCs with spines showing calyx with 4-fold symmetry, AACs usually present|
BCs robust, rim wide, ornamented
Syracosphaera molischii type 1
Syracosphaera molischii type 2
Syracosphaera molischii type 3
Syracosphaera molischii type 4
BCs narrow smooth rim; CFCs with tall spines
BCs small, large central plaque and narrow lath cycle, rim narrow smooth
BCs with broad smooth rim
BCs like S. ossa but with central ring of nodes; CFCs like S. ossa, with flattened spine; XCs not known
Parent taxon (SY molischii gp): BCs placolith-like (i.e. with proximal and distal flanges), often with ridges and irregular central area calcification, no spines. XCs variable.
This taxon: XCs “undulating” planoliths, confined to imbricate circlet around flagellar pole. CFCs with spines showing calyx with 4-fold symmetry, AACs usually present.
Farinacci & Howe catalog pages:
Coccospheres are typically small and somewhat flattened/oblate - i.e. wider than long.
Ecology & Biogeography
Biology & life-cycles
|Lith size: 1->3.5µm; Coccosphere size: 3->13µm;|
Last occurrence (top): Extant. Data source: Total of range of species in this database
First occurrence (base): at base of Gelasian Stage (0% up, 2.6Ma, in Piacenzian stage). Data source: Total of range of species in this database
Plot of occurrence data:
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=877 Go to Archive.is to create a permanent copy of this page - citation notes