radiolaria - rads_cat - Periphaena delta radiolaria - rads_cat - Periphaena delta

CATALOG OF ORIGINAL DESCRIPTIONS: Periphaena delta Sanfilippo & Riedel 1973

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.


Higher levels: rads_cat -> P -> Periphaena -> Periphaena delta
Other pages this level: P. cincta, P. decora, P. delta

Periphaena delta

Citation: Periphaena delta Sanfilippo & Riedel 1973
Taxonomic rank: species
Described on page(s) : p.523
Type specimens: pl.8, figs.11,12,

Current identification/main database link: Periphaena delta Sanfilippo & Riedel 1973


Original Description

Lenticular cortical shell with short, broad marginal spines. Cortical shell with thick wall, smooth surface, and numerous. small, cylindrical pores, with broad. delta-shaped. radially striated spines (usually six in number) arising as extensions of the margin. Medullary shell double.

Size:
Based on 20 specimens from Cores 94-22, 94-23 and 94-26. Diameter of cortical shell (excluding spines) 130-205 µ, of outer medullary shell 40-55 µ. Number of pores on a radius of cortical shell 9-12 [µ].

Etymology:
The specific name is an allusion to the shape of the marginal spines.

Extra details from original publication
Distinguishing features: This species is distinguished from all others of the genus by the short, broad, radially striated marginal spines. The radial striations are connected with the intervening bars of the pores at the margin of the cortical shell, as is common in members of t

References:

Sanfilippo, A. & Riedel, W. R. (1973). Cenozoic Radiolaria (exclusive of theoperids, artostrobiids and amphipyndacids) from the Gulf of Mexico, Deep Sea Drilling Project Leg 10. Initial Reports of the Deep Sea Drilling Project. 10: 475-608. gs O


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Periphaena delta compiled by the radiolaria@mikrotax project team viewed: 25-1-2026

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=259024 Go to Archive.is to create a permanent copy of this page - citation notes



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