Lithopera neotera


Classification: rads_cenozoic -> Theoperidae -> Eucyrtidiidae -> Lithopera -> Lithopera neotera
Sister taxa: L. bacca, L. baueri, L. neotera, L. renzae, L. thornburgi, L. sp.

Taxonomy

Citation: Lithopera neotera Sanfilippo & Riedel 1970
Rank: species
Basionym: Lithopera neotera
Taxonomic discussion: Sanfilippo and Riedel 1970 p.454 pl.1 figs.24-26,28; Wang & Yang, 1992 (ODP 125 SR) p.105 pl.1 fig.25 (synon.)

Catalog entries: Lithopera neotera

Original description: Subellipsoidal shell, of which the thorax forms the major part. Cephalis spherical, usually pore-less. half or more of it sunken into the thorax, with a small apical horn. Collar stricture generally not pronounced externally. From the base of the cephalis, primary lateral and dorsal spines extend in the thoracic wall or within the thoracic cavity to join the inner surface of the upper wall. Remainder of shell subellipsoidal. with subregular pores not arranged in rows, and with practically no tendency to form a spongy meshwork. In some specimens. a line in the shell wall (with no change in contour) distally separates a short, flattened area. which may be regarded as an abdomen, from the remainder, which may be regarded as the thorax.
Remarks on original description: The authors here list this species under the subgeneric name Lithopera and include the subgeneric name in the species name.[comment from RadWorld database]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Neogene Period (2.59-23.03Ma, top in Piacenzian stage). Data source: Lazarus et al. 2015 - "N age group"
First occurrence (base): within Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Lazarus et al. 2015 - "N age group"

Plot of occurrence data:

References:

Sanfilippo, A. & Riedel, W. R. (1970). Post-Eocene "closed" theoperid radiolarians. Micropaleontology. 16(4): 446-462. gs

Wang, Y. & Yang, Q. (1992). Neogene and Quaternary radiolarians from Leg 125. Proceedings of the Ocean Drilling Program, Scientific Results. 125: 95-112. gs


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Lithopera neotera compiled by the radiolaria@mikrotax project team viewed: 11-4-2021

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