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Current identification:
Original Description
The genus Trochodiscus bears on the thin margin of the latticed disk a variable number of radial spines (commonly ten to twenty, sometimes fifty to eighty or more). Their size and disposition are commonly more or less irregular. For the most part all the marginal spines lie in the equatorial plane; but sometimes part of them are crowded into two or four parallel girdles. Several species of this genus are very similar to some species of Heliodiscus, and only differ in the absence of the medullary shell, perhaps in consequence of the phylogenetic loss of it; if this be the case, the former are to be derived from the latter (compare p. 410).
Etymology:
Extra details from original publication
Sub-genera described:
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Trochodiscus compiled by the radiolaria@mikrotax project team viewed: 11-10-2026
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=253802 Go to Archive.is to create a permanent copy of this page - citation notes |
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