Catalog - Pseudoticinella planoconvexa Catalog - Pseudoticinella planoconvexa

CATALOG OF ORIGINAL DESCRIPTIONS: Pseudoticinella planoconvexa Longoria, 1973

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 -> Pseudoticinella -> Pseudoticinella planoconvexa
Other pages this level: P. planoconvexa

Pseudoticinella planoconvexa

Citation: Pseudoticinella planoconvexa Longoria, 1973
taxonomic rank: Species
Type specimens: types never deposited.
Type sample (& lithostrat): Eagle Ford Formation, Britton Member.
Type age (chronostrat): Upper Cretaceous, lower Turonian
Type locality: Exposure in a ditch at the intersection of Belt Line Road and Valley View Lane, southwest of Denton, Dallas County, Texas.
Type repository: Washington; USNM

Current identification/main database link: Anaticinella planoconvexa (Longoria 1973)

Original Description

Same features as in the genus. Test large, planoconvex, umbilical side flattened, spiral side strongly convex; formed by about three whorls; peripheral margin ovate; five to six chambers in the last whorl, increasing gradually in size as added; chambers petalloid to trapezoidal on spiral side, ovoid to sub-rectangular on umbilical side; sutures radial, straight and depressed on both spiral and umbilical side; primary aperture umbilical to extra-umbilical, bordered by wide imperforate portici, infra-laminal apertures visible at the base of the sutures; umbilicus partially covered by the umbilical cover-plate; surface of the test covered by numerous pustules.

Editors' Notes

Pseudoticinella planoconvexa is abundant in the material studied, about 60 specimens were analyzed. P. planoconvexa differs from P. multiloculata (Morrow) [Globorotalia? multiloculata, 1934] 1) by its strongly convex spiral side; 2) by having less chambers in the last whorl, five to six instead of six to eight; and 3) by having sub-rectangular rather than subtriangular chambers in the last whorl.


Longoria, J. F. (1973a). Pseudoticinella, a new genus of planktonic foraminifera from the early Turonian of Texas. Revista Española de Micropaleontología. 5(3): 417-423. gs


Pseudoticinella planoconvexa compiled by the pforams@mikrotax project team viewed: 2-3-2024

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