CATALOG OF ORIGINAL DESCRIPTIONS: Microhedbergella praeplanispira Huber & Leckie 2011

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> M -> Microhedbergella -> Microhedbergella praeplanispira
Other pages this level: M. miniglobularis, M. praeplanispira, M. pseudodelrioensis, M. pseudoplanispira, M. renilaevis,

Microhedbergella praeplanispira

Citation: Microhedbergella praeplanispira Huber & Leckie 2011
Rank: Species
Type locality: DSDP Site 511 (southern South Atlantic)
Holotype Repository: Washington; USNM
Type & figured specimens: 540924

Linked specimens: USNM-540926 USNM-540924 USNM-540925

Current identification/main database link: Microhedbergella praeplanispira Huber & Leckie 2011


Original Description
Test wall microperforate (0.8 to 1.2 mm), pores randomly scattered, surface smooth to weakly pustulose, very rarely observed with scattered perforation cones. Test small, low trochospiral, spiral side flat to slightly depressed, equatorial periphery rounded, moderately lobate in equatorial outline, test thickness:diameter ratio averaging 0.49; chambers globular, increasing gradually in size, ultimate: penultimate chamber ratio averaging 1.12, dextrally or sinistrally coiled in 2.5 whorls with 5.5 to 7 chambers in the final whorl; sutures moderately depressed, radial on umbilical and spiral sides; umbilicus shallow, comprising 21 to 26 percent of the test diameter; aperture an extraumbilical low arch that extends from near the equatorial peripheral margin nearly to the umbilicus, bordered by a narrow lip that usually broadens to an imperforate apertural flap extending toward the umbilicus, often with relict apertural flaps surrounding the umbilicus.

References:

Huber, B. T. & Leckie, R. M. (2011). Planktic foraminiferal species turnover across deep-sea Aptian/Albian boundary sections. Journal of Foraminiferal Research. 41: 53-95. gs


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Microhedbergella praeplanispira compiled by the pforams@mikrotax project team viewed: 10-12-2019

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Short stable page link: http://mikrotax.org/pforams/index.php?id=131868 Go to Archive.is to create a permanent copy of this page - citation notes



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