Catalog - Sphaeroidinella rutschi

CATALOG OF ORIGINAL DESCRIPTIONS: Sphaeroidinella rutschi Cushman & Renz 1941

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 -> S -> Sphaeroidinella -> Sphaeroidinella rutschi
Other pages this level: S. cellata, S. dehiscens excavata, S. dehiscens reticulata, S. dehiscens subdehiscens, S. disjuncta, S. ionica, S. ionica evoluta, S. ionica ionica, S. missionis, S. multiloba, S. rutschi, S. senni, S. spinulosa, S. transiens

Sphaeroidinella rutschi

Citation: Sphaeroidinella rutschi Cushman & Renz 1941
Rank: species
Type specimens: pl. 4, fig. 5· Fig. 5a-b, : no. 35914.
Type sample (& lithostrat): Upper Agua Salada formation, Zone 4 (Zone of Marginulina basispinosa and Robulus senni ); fide Renz, personal communication.]
Type age (chronostrat): Lowermost-Middle Miocene.
Type locality: sample L. P. 165 - collected by. Dr. P. Leuzinger. Isidro, 33.5 km. East (79° 45') of Pueblo Piritu, District Zamura, State Falcon, Venezuela.
Type repository: USNM

Linked specimens: USNM-45979 USNM-35946 USNM-35914

Current identification/main database link: Sphaeroidinellopsis kochi (Caudri, 1934)


Original Description

Test trochoid, subglobular, dorsal side with the spire depressed, periphery broadly rounded, slightly lobate; chambers strongly inflated, 3 or 4 making up the adult whorl; sutures slightly if at all depressed; wall smooth, very coarsely perforate; aperture in a deep depression between the two last-formed chambers, the periphery slightly raised and lip-like.

Size:
Diameter 0.40-0.45 mm.

Etymology:

Extra details from original publication
This species differs from S. dehiscens (Parker and Jones) in its smaller size, more globular form, and the failure to develop deep grooves along the sutures.

Stratigraphic occurrence: Lower and Upper Agua Salada Formation (Zones 2-4).

Editors' Notes

References:

Cushman, J. A. & Renz, H. H. (1941). New Oligocene-Miocene foraminifera from Venezuela. Contributions from the Cushman Laboratory for Foraminiferal Research. 17: 1-27. gs V O


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Sphaeroidinella rutschi compiled by the pforams@mikrotax project team viewed: 30-9-2022

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Short stable page link: https://mikrotax.org/pforams/index.php?id=132265 Go to Archive.is to create a permanent copy of this page - citation notes



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