This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.
|Zonodiscus pressulus Moksyakova 1965|
|not figured||Zonodiscus saturnalis Haeckel 1887|
The genus Zonodiscus differs from the preceding Cenodiscus only in the development of a solid siliceous girdle around the keen margin of the lenticular disk. This form can also be derived from Periphaena or Perizona by reduction and loss of the medullary shell. The same girdle formation returns not only in both these Phacodiscida (Pl. 32, fig. 7; Pl. 33, fig. 4), but also in the Porodiscid Perichlamydium.
Zonodiscus compiled by the radiolaria@mikrotax project team viewed: 9-6-2023
Short stables page link: https://mikrotax.org/radiolaria/index.php?id=263222 Go to Archive.is to create a permanent copy of this page - citation notes