radiolaria - rads_cenozoic - Haeckeliella inconstans radiolaria - rads_cenozoic - Haeckeliella inconstans

Haeckeliella inconstans


Classification: rads_cenozoic -> Actinommidae -> Astrosphaeridae -> Haeckeliella -> Haeckeliella inconstans
Sister taxa: H. inconstans, H. macrodoras, H. sp.

Taxonomy

Citation: Haeckeliella inconstans Dumitrica 1973
Taxonomic rank: species
Basionym: Haeckeliella inconstans
Synonyms:
1973 Haeckeliella inconstans - Dumitrica p.833; pl.7, figs. 1, 2; pl.18, figs. 7-22

From Suzuki Paleotax db:

1973 Haeckeliella inconstans n. sp. Dumitrica p. 833, pl. 7, figs. 1, 2, pl. 18, figs. 7-22
1974 Haeckeliella inconstans Dumitrica Riedel et al. p. 704-705, pl. 54, figs. 2, 3
1978 Haeckeliella (?) cf. H. inconstans Dumitrica Riedel & Sanfilippo pl. 2, fig. 3
1978 Haeckeliella (?) cf. inconstans Dumitrica Riedel & Sanfilippo pl. 2, figs. 1, 2
1978 Haeckeliella inconstans Dumitrica Riedel & Sanfilippo p. 101, 103, pl. 1, figs. 17-19
1980 Haeckeliella inconstans Dumitrica Sakai p. 704, pl. 2, figs. 7, 8a 8b
1992 Haeckeliella inconstans Dumitrica Sugiyama et al. p. 12, pl. 3, figs. 1-3

Catalog entries: Haeckeliella inconstans

Original description: Shell is composed of two concentric lattice-spheres, a macrosphere and a cortical sphere. The macrosphere is thin-walled, 80 to 90 in diameter, with polygonal pores irregularly arranged and separated by slender intervening bars. One or more inner wands may sometimes extend centripetally without reaching the center. Cortical shell is thick-walled. It is connected with the macrosphere by forty, fifty or more thin radial beams that extend beyond the cortical shell as stout, cylindrical, or three-bladed spines of variable length and usually with their distal ends irregularly ramified. Their length, aspect in cross section (circular or three-bladed), and type of distal ramifications while varying with specimens are similar in the same specimen. The cortical shell has quite irregular pores, in size, shape and arrangement. Pores are seldom simple, they are often complicated by centripetal ingrowths from the pore-walls, which end by dividing them into two or more secondary pores (Plate 18, Figure 9).

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:

Missing or ambiguous references: Dumitrica 1973;


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Haeckeliella inconstans compiled by the radiolaria@mikrotax project team viewed: 16-2-2025

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