radiolaria - rads_cat - Larcopyle nebulum radiolaria - rads_cat - Larcopyle nebulum

CATALOG OF ORIGINAL DESCRIPTIONS: Larcopyle nebulum Lazarus et al. 2005

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 -> L -> Larcopyle -> Larcopyle nebulum
Other pages this level: L. augusti, L. bucerum, L. buetschli chenmuhongi, L. buetschlii, L. buetschlii orion, L. drieschii, L. eccentricanoides, L. eccentricum, L. faustae, L. hayesi hayesi, L. hayesi irregularis, L. herbstii, L. labyrinthusa, L. molle, L. nebulum, L. peregrinator, L. polyacantha amplissima, L. polyacantha titan, L. pulchella, L. spongiosa, L. weddellium

Larcopyle nebulum

Citation: Larcopyle nebulum Lazarus et al. 2005
taxonomic rank: species
Described on page(s) : 111
Type specimens: Plate 5, figs 1–3
Type sample (& lithostrat): 689B-6H-1,116
Type age (chronostrat): Middle Miocene
Type locality: ODP Site 689, Weddell Sea
Type repository: Museum für Naturkunde, Mikropaläontologie No. ECO-18, circle 1

Current identification/main database link: Larcopyle nebulum Lazarus et al. 2005

Original Description

The shell (about 130–140 μm long) has an asymmet- ric, elliptic shape. In the centre of the shell often a spongy, dark disc can be found, which is surrounded by about three whorls of a single (?) spiral, which are generally irregular in shape. In some specimens the spiral is very weak or absent. A distinct polar cap can be seen in many specimens. The shell surface is rather smooth, due to the irregular-sized pores which lack frames. A wide pylome with teeth is present.

The species name reflects the similarity of the whorl structure to that of a galactic nebula.

Extra details from original publication

Occurrence. Early Miocene–Mid Miocene.

Remarks. Some specimens are very similar to L. polyacantha, but the shell is smaller and the presence of the spongy disc in the centre is characteristic for L. nebulum.


Lazarus, D., Faust, K. & Popova-Goll, I. (2005). New species of prunoid radiolarians from the Antarctic Neogene. Journal of Micropalaeontology. 24(2): 97-121. gs


Larcopyle nebulum compiled by the radiolaria@mikrotax project team viewed: 21-4-2024

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