radiolaria - rads_cenozoic - Larcopyle eccentricum radiolaria - rads_cenozoic - Larcopyle eccentricum

Larcopyle eccentricum


Classification: rads_cenozoic -> Pyloniidae -> Larcopyle -> Larcopyle eccentricum
Sister taxa: L. augusti, L. buetschlii, L. eccentricanoides, L. eccentricum, L. frakesi, L. hayesi, L. labyrinthusa, L. molle, L. nebulum, L. peregrinator, L. polyacantha, L. pulchella, L. pylomaticus, L. titan, L. weddellium, L. sp.

Taxonomy

Citation: Larcopyle eccentricum Lazarus et al. 2005
taxonomic rank: species
Basionym: Larcopyle eccentricum
Synonyms:
1990 Prunopyle titan - Abelmann p.693, pl. 3, fig. 16
2005 Larcopyle eccentricum - Lazarus et al p.111; pl.6, fig.1-15

Catalog entries: Larcopyle eccentricum

Original description:

The shell is elongate egg-shaped and about 120 μm long. The interior of the shell is usually empty, although a delicate set of widely spaced elongated medullary shells can be seen in some specimens. A well-developed pylome with teeth is visible at one pole, which often forms a tube-like structure. The medium-sized pores are circular and rather regularly arranged. They are surrounded by weak frames. The surface varies from smooth to somewhat thorny due to variably developed pore frames. The outer shell wall is rather thin.

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Middle Miocene Sub-Epoch (11.62-15.97Ma, top in Serravallian stage). Data source: Lazarus et al. 2005
First occurrence (base): within Early Miocene Sub-Epoch (15.97-23.03Ma, base in Aquitanian stage). Data source: Lazarus et al. 2005

Plot of occurrence data:

References:

Abelmann, A. (1990). Oligocene to Middle Miocene radiolarian stratigraphy of southern high latitudes from Leg 113, Sites 689 and 690, Maud Rise. Proceedings of the Ocean Drilling Program, Scientific Results. 113: 675-708. gs

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


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Larcopyle eccentricum compiled by the radiolaria@mikrotax project team viewed: 25-6-2024

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