Ellipsoxiphium

Daughter taxa (time control age-window is: 0-800Ma)
				Ellipsoxiphium palliatum neptune records:
				Ellipsoxiphium sp. neptune records:

Taxonomy

Catalog entries: Ellipsoxiphium

Original description: Proportion of the major axis of the ellipsoid to the minor = 5: 4. Shell thick walled, with regular, circular meshes, separated by a regular, hexagonal elevated framework. From each hexagon-corner arises (between every three meshes) a short thin spine, about as long as the diameter of a mesh; twelve to fourteen meshes on the half equator, of the same breadth as the bars. Polar spines three-sided prismatic, cuspidate, about as long as the axis of the shell. (This elegant and not uncommon species is remarkable for its variations. By unequal development of both spines it passes over to Ellipsostylus.). In the figured variety (Pl. 14, fig. 7) the ends of the surface spines are connected by a very delicate network, so as to form an outer veil. This may further be separated as a peculiar genus Ellipsoxiphium palliatum.

Longer axis 0.08 to 0.13, shorter axis 0.06 to 0.11; pores and bars 0.008; length of the polar spines 0.06 to 0.12, basal breadth 0.01. [dimensions in mm]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: Total of ranges of the species in this database
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

• Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
• Triangles indicate an event for which a precise placement has been suggested
• Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Actinommidae inc sed

Ellipsoxiphium compiled by the radiolaria@mikrotax project team viewed: 22-5-2025 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/bforams/index.php?id=204021 Go to Archive.is to create a permanent copy of this page - citation notes

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