Rugoglobigerina

Daughter taxa (time control age-window is: 0-800Ma)
			Rugoglobigerina hexacamerata
			Rugoglobigerina macrocephala
			Rugoglobigerina milamensis
			Rugoglobigerina pennyi
			Rugoglobigerina rugosa
			Rugoglobigerina spinosa
			Rugoglobigerina sp. Specimens which cannot be assigned to established species

Taxonomy

Original description: Test either Hantkenina-like or distinctly Globigerina- like, almost planispiral to trochoidal. Chambers of Hantkenina type with axially situated spines, those of Globigerina type rounded peripherally, truncate toward umbilicus. Sutures straight to slightly curved in direction of coiling. Apertures large, arcuate, directed toward umbilicus, occasionally with liplike projections. Umbilicus subcircular, as a rule large, deep, with covering plate. Surface ornamented by rugosities of various size and type, either distributed irregularly or arranged in rows radiating from a central point on the surface toward the aperture (meridional pattern).

Entries in the Catalog of original descriptions: Rugoglobigerina

Distinguishing features:
Parent taxon (Rugoglobigerinidae): Test trochospiral, chambers inflated, periphery rounded, not carinate; wall with pustules, costellae, or other rugosities; aperture umbilical, with portici or tegilla.
This taxon: Test in low to flat trochospiral coil of rapidly enlarging globular chambers, biconvex, umbilicate, umbilicus occupying up to one-half the test diameter, periphery rounded, noncarinate; wall calcareous, perforate, surface with pustules, rugosities, and costellae in a meridional pattern; primary aperture interiomarginal, umbilical, with prominent tegilla and large proximal and distal accessory apertures.

Geological Range:
Last occurrence (top): at top of P. hariaensis zone (100% up, 66.4Ma, in Maastrichtian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Campanian Stage (72.17-83.65Ma, base in Campanian stage). Data source: Total of ranges of species in this database

Plot of range and 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: Rugoglobigerinidae

Rugoglobigerina compiled by the pforams@mikrotax project team viewed: 14-12-2024 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/pforams/index.php?id=110499 Go to Archive.is to create a permanent copy of this page - citation notes

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