Classification: rads_cenozoic -> Spongodiscidae -> Spongodiscidae (ss) -> Stylotrochus
Sister taxa: Rhopalodictyum, Spongodiscus, Spongopyle, Spongotrochus, Stylotrochus
Daughter taxa: (blue => in age window 0-800Ma) Granddaughter taxa
Stylotrochus alveatus

neptune records: 70

Stylotrochus charlestonensis

neptune records: 22

Stylotrochus nitidus

neptune records: 25

Stylotrochus quadribrachiatus

neptune records:

Stylotrochus sol

neptune records:

Stylotrochus sp.

neptune records:


Citation: Stylotrochus Haeckel 1862
Rank: genus
Basionym: Stylotrochus

Catalog entries: Stylotrochus

Original description: Radialstacheln sämmtlich in einer einzigen Ebene liegend. welche sich in der Mitte zwischen den beiden Flächen der Schwammscheibe befindet und diesen beiden Flächen parallel läuft.
Remarks on original description: Campbell [1954, p.D94] considers Stylotrochus to be an objective synonym of Stylospongia Haeckel, 1862. However, this seems inappropriate as the type species of Stylospongia [Stylospongia huxleyi Haeckel, 1862] was not among those species assigned to Stylotrochus at the time of its generic definition. Species included at that time are: Spongotrochus arachnius Haeckel, 1862 and S. heteracanthus Haeckel,1862.


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Piacenzian Stage (100% up, 2.6Ma, in Piacenzian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Danian Stage (0% up, 66Ma, in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:


Haeckel, E (1862). Die Radiolarien (Rhizopoda Radiaria). Eine Monographie. Georg Reimer, Berlin. 1-572. gs


Stylotrochus compiled by the radiolaria@mikrotax project team viewed: 23-11-2020

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