neptune records:
neptune records:
| Daughter taxa (time control age-window is: 0-800Ma) | ||||
| Trigonocyclia prima neptune records: | |||
| Trigonocyclia sp. neptune records: | ||||
Catalog entries: Trigonocyclia
Original description: Coccodiscida with three solid radial spines on the margin of the circular disk. Medullary shell simple.
The genus Trigonocyclia (only known by one single species, once observed) bears on the margin of the chambered disk three solid radial spines, at equal distances one from another. It corresponds to the genus Tripodictya amongst the Porodiscida.
Remarks on original description: Junior objective synonym of Tripodydlia Haeckel, 1881a
Geological Range:
Last occurrence (top): at top of Paleogene Period (100% up, 23Ma, in Aquitanian stage). 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:
References:
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Trigonocyclia compiled by the radiolaria@mikrotax project team viewed: 26-1-2025
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=205935 Go to Archive.is to create a permanent copy of this page - citation notes |
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