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Current identification:
Original Description
The genus Staurotholonium differs from the nearly allied Staurotholus (its probable ancestral form) only in the duplication of the cortical shell. The outer shell commonly repeats the cross-form of the inner, with four corresponding cupolas; but sometimes the four cupolas of the outer shell alternate in size and form with those of the inner, or the outer shell forms a simple lenticular envelope around the inner. From the similar Tholoma, Staurotholonium differs in the possession of a medullary shell in the central chamber.
Etymology:
Extra details from original publication
Sub-genera described:
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Staurotholonium compiled by the radiolaria@mikrotax project team viewed: 29-4-2025
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=253693 Go to Archive.is to create a permanent copy of this page - citation notes |
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