smooth non-spinose


Classification: pf_cenozoic -> smooth non-spinose
Sister taxa: microperforate, muricate non-spinose, smooth non-spinose, spinose, hidden,
Daughter taxa (blue => in age window 0-300Ma) Granddaughter taxa


Test trochospiral with umbilical-extraumbilical aperture with a prominent lip. Apertures of earlier formed chambers remain visible around the umbilicus.

Taxonomy

Citation: smooth non-spinose
Rank: informal group

Catalog entries:

Type images:

NB The short diagnoses are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus. They have initially been copied from the diagnostic characters/distinguishing features sections of the Eocene and Paleocene Atlases, they will be edited as the site is developed.

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Rupelian Stage (28.09-33.89Ma, top in Rupelian stage). Data source: Total of range of species in this database
First occurrence (base): within Maastrichtian Stage (66.04-72.05Ma, base in Maastrichtian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:


smooth non-spinose compiled by the pforams@mikrotax project team viewed: 26-6-2017

Taxon Search:
Advanced Search




Comments (0)

No comments yet. Be the first!

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics