Bucherina sandidgei

Taxonomy

Original description: Test low trochospiral, planoconvex in edge view, often presenting a shift in the axis of coiling in the adult stage. Outline subcircular to lobate, 5½ to 6 slowly increasing in size chambers in the final whorl. Sutures slightly curved depressed between the last formed chambers of the final whorl, slightly raised and lined with a row of pustules between the earlier chambers of the final whorl. Umbilical sutures depresed. Periphery truncated presenting a faint keel mostly developed on the earlier chambers of the final whorl. Chambers flattened dorsally and inflated on the umbilical side. Umbilical diameter approximately ¼ to ⅓ of the maximum test diameter. Main aperture interiomarginal, umbilical bordered bu a delicate tegilla, successive tegilla leaving both distal and proximal accessory apertures. Test surface presents scattered pustules and papillae lacking meridional arrangement.

Entries in the Catalog of original descriptions: Bucherina sandidgei

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 A. mayaroensis zone (67.64-69.27Ma, base in Maastrichtian 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
• (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Bucherina

Bucherina sandidgei compiled by the pforams@mikrotax project team viewed: 14-10-2024 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/pforams/index.php?id=110037 Go to Archive.is to create a permanent copy of this page - citation notes

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