Nannotax3 - ntax_mesozoic - Syracosphaera


Classification: ntax_mesozoic -> Syracosphaerales -> Syracosphaeraceae -> Syracosphaera
Sister taxa: Syracosphaera

Daughter taxa (time control age-window is: 0-800Ma)
Syracosphaera antiqua
Rim very narrow; rhomboidal central plate 
Syracosphaera repagula
Rim well-developed, wide lath cyle cycle, longitudinal bar
Syracosphaera sp.


Citation: Syracosphaera Lohmann 1902
Rank: Genus
Type species: Syracosphaera pulchra subs. des. by Loeblich & Tappan 1963
Taxonomic discussion: Syracosphaera is a characteristic extant taxon with only a spotty fossil record. Nonetheless occurences down to the Eocene are now well-established. Turonian specie illustrated and decribed by Bown et al. 2017 appear to extend rage into the Cretaceous and some Stradnerlithus species appear very similar.

Farinacci & Howe catalog pages: Syracosphaera + *

Search data:
TagsLITHS: murolith, elliptical, CA: ca_disjunct, grill,
MetricsLith size: 1.5->3µm;
Data source notes: size range of included species
The morphological data given here can be used on the advanced search page. See also these notes

See also: Thurmannolithion ;Stradnerlithus clatriatus ;Stradnerlithus wendleri ;Diductius constans - Mesozoic species with strong similarities to Syracosphaera;

Geological Range:
Last occurrence (top): at top of Turonian Stage (100% up, 89.8Ma, in Turonian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Turonian Stage (0% up, 93.9Ma, in Cenomanian stage). Data source: Total of range of species in this database

Plot of occurrence data:


Bown, P. R., Lees, J. A. & Young, J. R. (2017). On the Cretaceous origin of the Order Syracosphaerales and the genus Syracosphaera. Journal of Micropalaeontology. 36(2): 153-165. gs V O

Lohmann, H. (1902). Die Coccolithophoridae, eine Monographie der Coccolithen bildenden Flagellaten, zugleich ein Beitrag zur Kenntnis des Mittelmeerauftriebs. Archiv für Protistenkunde. 1: 89-165. gs V O


Syracosphaera compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-1-2022

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