Whiteinella baltica

Taxonomy

Original description: "Test free, low trochospiral, equatorial periphery strongly lobulate, axial periphery rounded. Chambers inflated, subspherical four to five in final whorl; initial chambers increase rapidly in size, final chambers increase gradually. Sprial and umbilical sutures radial to slightly curved, depressed, distinct. Chamber surface coarsely hispid. Wall calcareous, perforate. Umbilicus shallow, wide. Primary aperture extraumbilical-umbilical covered by large flap in well preserved specimens. "Whiteinella archaeocretacea Pessagno may be distinguished from the new species by (1) the larger umbilical cavity and (2) by sausagelike chambers which are compressed in the equatorial plane. Also, the Texas form attains a larger size; specimens range up to 0.70 mm in diameter."R

Entries in the Catalog of original descriptions: Whiteinella baltica, Rugoglobigerina alpina

Geological Range:
Last occurrence (top): within G. elevata zone (79.33-83.65Ma, top in Campanian 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 baltica, synonyms included - Whiteinella alpina; Whiteinella baltica;
• See also space-time plot :: Samples map :: Parent: Whiteinella

Whiteinella baltica compiled by the pforams@mikrotax project team viewed: 17-6-2026 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/pforams/index.php?id=110575 Go to Archive.is to create a permanent copy of this page - citation notes

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