pforams@mikrotax - Paraticinella transitoria pforams@mikrotax - Paraticinella transitoria

Paraticinella transitoria


Classification: pf_mesozoic -> Hedbergellidae -> Paraticinella -> Paraticinella transitoria
Sister taxa: P. rohri, P. transitoria, P. sp.

Taxonomy

Citation: Paraticinella transitoria (Longoria, 1974)
Taxonomic rank: species
Basionym: Ticinella bejaouaensis transitoria

Type images:

Original description: Variation of the species Ticinella bejaouaensis Sigal displays considerable variation. In typical forms, the number of chambers in the last whorl varies from eight to nine. However, neanic forms may only have seven or even six chambers in the last whorl. Such neanic forms are transitional between Hedbergella trocoidea (Gandolfi) and T. bejaouaensis Sigal. The specific designation of these forms may be based on the number of chambers in the last whorl. Some of these forms are here illustrated on plate 21, figures 9-11 and 14-16 as Ticinella bejaouaensis transitoria, n. subsp

Entries in the Catalog of original descriptions: Ticinella bejaouaensis transitoria

Character matrix
test outline:chamber arrangement:Trochospiraledge view:aperture:Umbilical-extraumbilical
sp chamber shape:coiling axis:periphery:N/Aaperture border:
umb chbr shape:umbilicus:periph margin shape:accessory apertures:Relict
spiral sutures:Moderately depressedumb depth:wall texture:Pore moundsshell porosity:Macroperforate: >2.5µm
umbilical or test sutures:final-whorl chambers:7-9 N.B. These characters are used for advanced search. N/A - not applicable

Geological Range:
Last occurrence (top): within T. rohri (-Ma, top in "Holocene" stage). Data source: copied from Chronos database, but zonal name updated from T. bejaouaensis to T. rohri
First occurrence (base): within T. rohri (-Ma, base in "Holocene" stage). Data source: copied from Chronos database, but zonal name updated from T. bejaouaensis to T. rohri

Plot of range and occurrence data:

References:

Longoria, J. F. (1974). Stratigraphic, morphologic and taxonomic studies of Aptian planktonic foraminifera. Revista Española de Micropaleontología. Numero Extraordinario: 5-107. gs


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Paraticinella transitoria compiled by the pforams@mikrotax project team viewed: 7-10-2026

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110388 Go to Archive.is to create a permanent copy of this page - citation notes



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