CATALOG OF ORIGINAL DESCRIPTIONS: Paraticinella Premoli Silva et al., 2009

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 -> P -> Paraticinella
Other pages this level: Paracostellagerina, Paragloborotalia, Parasubbotina, Parathalmanninella, Paraticinella, Parkerina, Parvularugoglobigerina, Phanerostomum, Planoglobanomalina, Planoglobulina, Planoheterohelix, Planomalina, Planorotalites, Planulina, Plummerita, Polyperibola, Porticulasphaera, Praeglobotruncana, Praegublerina, > >>

Paraticinella

Citation: Paraticinella Premoli Silva et al., 2009
Rank: Genus
Type species: Paraticinella rohri (Bolli, 1959)

Current identification/main database link: Paraticinella
Notes:

Paraticinella differs from the genus Ticinella in having the wall surface covered by smaller pores and perforation cones that coalesce to form irregular imperforate ridges on earlier chambers and toward the periphery that may mask the small, dense perforations and that may grow as ridges in patterns paralleling the coiling direction of the inner spire and the equatorial outline; evolutionarily advanced specimens contain well-developed flaps merging into a cover-plate and may contain one to two weakly developed infralaminal accessory apertures bordered by a thin rim. In Ticinella, rugosities on the wall surface form from pointed muricae that grow as irregularly distributed larger pustules surrounding large perforations, and there are at least two well-developed supplementary apertures bordered by rims in the umbilical area, which may remain open or lightly covered by weakly developed portici. It is worth mentioning that Longoria (1974, p. 93) re-emended the genus Ticinella Reichel 1950, emended Brönnimann and Brown 1956, in order to summarize the characters he used for distinguishing Ticinella bejaouaensis Sigal.


Original Description:

Low trochospiral, generally slightly lobate in outline, numerous chambers (7–11) in the last whorl, globular, sutures straight and depressed on both sides; wall finely perforate; wall surface rugose to smooth, with rugosities masking the inner whorl, then covering the first chambers of the last whorl, frequently organized in irregularly sized ridges that may cover the pores and run parallel to the spiral suture; surface of later-formed chambers may bear volcano-like perforation cones that progressively attenuate toward the ultimate chamber; shallow umbilical area moderate to large in size; umbilical area may be covered, at least partially, by large flaps from the ultimate and penultimate chambers that fuse along a slightly depressed line forming a cover-plate; primary aperture an interiomarginal arch, umbilical-extraumbilical extending toward the periphery; may have one to two small, weakly developed umbilical accessory (infralaminal) apertures in the last chambers.

References:

Premoli Silva et al 2009 [sorry, not in our bibliography yet]tep


Catalog entry for Paraticinella compiled by the pforams@mikrotax project team viewed: 26-3-2017

Taxon Search




Comments (0)

No comments yet. Be the first!

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics