Globotruncanella minuta

Taxonomy

Original description: "Umbilical Side -Primary aperture extraumbilical-umbilical. -Sutures radial, depressed. -4 to 4.5 chambers, globular, with a surface bearing pustules, more numerous on the first chambers. -Umbilicus: less than 1/4 of the maximum diameter. -Umbilical system composed of portici, well developed, sometimes free, often merging at the umbilical and/or posterior edges. Spiral Side. -Outline lobate to strongly lobate. -Sutures radial, depressed, joining the spiral sutures at right angles. -Chambers globular, with a surface bearing pustules, more developed on the first chambers of the last whorl. First whorls depressed in respect to the last whorl. -Chambers increasing very rapidly in size as added. Lateral View. -Trochospire very low, tending to planispiral. -Profile almost symmetrical; periphery broadly rounded throughout without any patterns. Size: 0.15 to 0.30 mm. Holotype: 0.30 mm."

Entries in the Catalog of original descriptions: Globotruncanella minuta

Geological Range:
Last occurrence (top): within A. mayaroensis zone (67.64-69.27Ma, top in Maastrichtian stage). Data source: [copied from Chronos database]
First occurrence (base): within G. gansseri zone (71.73-73.80Ma, base in Campanian 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: Globotruncanella minuta, synonyms included - Globotruncanella minuta;
• See also space-time plot :: Samples map :: Parent: Globotruncanella

Globotruncanella minuta compiled by the pforams@mikrotax project team viewed: 14-1-2025 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/pforams/index.php?id=110183 Go to Archive.is to create a permanent copy of this page - citation notes

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