Taxonomy
Original description: Test small; pores large relative to size of test, widely separated and evenly distributed; very low trochospire of 3 volutions of ovate chambers that increase gradually in size as added; usually 6 overlapping chambers in the last whorl; last chamber large, offset toward the umbilicus, sometimes, obscuring it completely; sutures depressed, radial, slightly curved; periphery lobulate, broadly rounded; primary aperture interiomarginal, extraumbilical; remnants of porticus often preserved.
Entries in the Catalog of original descriptions: Hedbergella implicata
Character matrix
| test outline: | Lobate | chamber arrangement: | Trochospiral | edge view: | aperture: | Umbilical-extraumbilical | |
| sp chamber shape: | Globular | coiling axis: | Low | periphery: | N/A | aperture border: | Thin lip |
| umb chbr shape: | Globular | umbilicus: | Narrow | periph margin shape: | Broadly rounded | accessory apertures: | Relict |
| spiral sutures: | Moderately depressed | umb depth: | Deep | wall texture: | Smooth | shell porosity: | |
| umbilical or test sutures: | Moderately depressed | final-whorl chambers: | 5.5-6.5 | N.B. These characters are used for advanced search. N/A - not applicable | |||
Geological Range:
Last occurrence (top): within P. appenninica zone (100.50-101.92Ma, top in Albian stage). Data source: [copied from Chronos database]
First occurrence (base): within P. appenninica zone (100.50-101.92Ma, base in Albian stage). Data source: [copied from Chronos database]
Plot of range and occurrence data:
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Muricohedbergella implicata compiled by the pforams@mikrotax project team viewed: 6-10-2026
Short stable page link: https://mikrotax.org/pforams/index.php?id=110368 Go to Archive.is to create a permanent copy of this page - citation notes |
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