Whiteinella archaeocretacea

Taxonomy

Original description: "Test lobulate, coiled in low trochospiral coil with four to five chambers in last whorl. Chambers spherical, initially; becoming ovate in cross-section in last whorl; in spiral and umbilical views, chambers broad in last whorl; separated by slightly curved to straight, depressed, radial sutures. Test with three whorls of chambers increasing rapidly in size; chambers of early whorl small in comparison to those of last whorl. Surface of test coarsely rugose in well-preserved specimens. Umbilicus shallow and wide. Primary aperture extraumbilical to nearly umbilical in position with large portici when well preserved. Outer wall radial hyaline perforate; septal wall microgranular hyaline perforate; portici microgranular hyaline, perforate (?).

Entries in the Catalog of original descriptions: Whiteinella archaeocretacea, Praeglobotruncana lehmanni

Geological Range:
Last occurrence (top): within D. asymetrica zone (83.65-85.60Ma, top in Santonian stage). Data source: [copied from Chronos database]
First occurrence (base): within R. cushmani zone (94.03-98.69Ma, base in Cenomanian stage). Data source: [copied from Chronos 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
• Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
• Taxon plotted: Whiteinella archaeocretacea, synonyms included - Praeglobotruncana lehmanni; Whiteinella archaeocretacea;
• See also space-time plot :: Samples map :: Parent: Whiteinella

Whiteinella archaeocretacea compiled by the pforams@mikrotax project team viewed: 10-5-2026 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/pforams/index.php?id=110573 Go to Archive.is to create a permanent copy of this page - citation notes

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