Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
![]() | Cromyomma circumtextum neptune records: | |||
![]() | Cromyomma riedeli neptune records: 10 | |||
![]() | Cromyomma villosum neptune records: | |||
Cromyomma sp. neptune records: |
Catalog entries: Cromyomma
Translated description: From Haliomma Ehr. pro parte]
Skelet besteht aus vier oder mehr concentrischen und durch Radialstäbe verbundenen kugeligen oder ellipsoiden Gitterschalen, von denen ein Theil innerhalb, ein Theil ausserhalb der Centralkapsel liegt; die äusserste Gitterschale ohne vortretenden ringförmigen Aequatorialgürtel.
Skeleton with 4 or more concentric spherical or ellipsoidal latticed-shells linked by internal
radial beams, including the central capsule in its inner part; the external shell without a
protruding annular equatorial ring. (In German. Translation by J.P.C.)]
Geological Range:
Last occurrence (top): Extant. Data source: Total of ranges of the species in this database
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
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Cromyomma compiled by the radiolaria@mikrotax project team viewed: 22-5-2025
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