Catalog - Riveroinella martinezpicoi Catalog - Riveroinella martinezpicoi

CATALOG OF ORIGINAL DESCRIPTIONS: Riveroinella martinezpicoi Bermudez & Seiglie 1967

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 -> R -> Riveroinella -> Riveroinella martinezpicoi
Other pages this level: R. martinezpicoi

Riveroinella martinezpicoi

Citation: Riveroinella martinezpicoi Bermudez & Seiglie 1967
taxonomic rank: Species
Described on page(s) : 177-178
Type specimens: Plate 1, figs. 1-6; Holotype USNM 687203 and paratypes USNM 687204 to 687208
Type sample (& lithostrat): base of the Ponce Formation in a thin, gray bed consisting of a "globigerina ooze" with a high content of a black mineral.
Type age (chronostrat): early Miocene, Globigerinatella insueta Zone
Type locality: base of Quarry no. 2 of the Puerto Rican Cement Company at Ponce, Puerto Rico.
Type repository: Washington, USNM

Linked specimens: USNM-687203 USNM-687206 USNM-687208 USNM-687207 USNM-687205 USNM-687204

Current identification/main database link: Riveroinella martinezpicoi Bermúdez & Seiglie 1967


Original Description

Test free, small, planispiral, lobate, periphery subacuneate, not carinate, Chambers arra nged in one and a half whorls, in adult specimens five chambers per whorl, gradually increasing in size as added. one side nearly plane and the opposite inflated. alternating nearly plane and inflated sides in successive chambers. Sutures rather depressed and sometimes curved backward on periphery on the plane side of the chambers. Wall aragonitic, transparent with slightly elongated white spots, finely and uniformly perforated. Aperture elongated, peripheral, provided with a more or less nodose lip; foramen, an elongated slightly oblique slit provided with a lip; the lips of older apertures are so well marked on sutures that in some specimens the latest suture appears to have an accessory aperture.

Size:
Maximum diameter: 0.15 mm to 0.33 mm. The maximum diameter of the holorype is 0.33 mm.

Etymology:
The name is given in honor of Dr. Jose Luis Martinez Pico, Department of Chemistry, University of Puerto Rico, Mayaguez, Puerto Rico.

Extra details from original publication
Remarks: As this species is the only one known of the genus, it may be distinguished by its generic characteristics. Riveroinella martinezpicoi is a rare deep water species. The sample has a very high percentage of planktonic foraminifers. The most common associated benthonic foraminifers are: Pullenia quinqueloba Reuss. Hanzawaia mantaensis (Galloway and Morrey), Valvulineria gasparenis Bermudez, Sphaeroidina bulloides ( d'Orbigny), Plectofrondicularia floridana Cushman, Pleurostomella alternans Schwager, Compressigerina coartata (Palmer ), Cibicides yaguatensis Bermudez, Bolivina rostrata Brady, Bolivina marginata Cushman, B. tongui Cushman, B. ventricosa Galloway and Hemingway, Uvigerina carapitana Hedberg and Orthophragmina spp .

References:

Bermudez, P. J. & Seiglie, G. A. (1967). A new genus and species of foraminifer from the Early Miocene of Puerto Rico. Tulane Studies in Geology. 5(3): 177-199. gs

Pearson, P. N., Spezzaferri, S., Huber, B. T. & Kučera, M. (2018b). Taxonomy, biostratigraphy, and phylogeny of Oligocene Cassigerinella. In, Wade, B. S., Olsson, R. K., Pearson, P. N., Huber, B. T. & Berggren, W. A. (eds) Atlas of Oligocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication . 46(Chap 18): 481-494. gs


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Riveroinella martinezpicoi compiled by the pforams@mikrotax project team viewed: 11-12-2024

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