Catalog - Hedbergella punctata Catalog - Hedbergella punctata

CATALOG OF ORIGINAL DESCRIPTIONS: Hedbergella? punctata Michael 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 -> H -> Hedbergella -> Hedbergella punctata
Other pages this level: << < H. intermedia, H. kuhryi, H. kyphoma, H. labocaensis, H. lata, H. libyca, H. luterbacheri, H. maslakovae, H. murphyi, H. occulta, H. praelibyca, H. praelippa, H. praetrocoidea, H. pseudoplanispiralis, H. pseudotrocoidea, H. punctata, H. pustulosa, H. quadrata, H. ranzenbergensis, H. rischi, H. semielongata, H. sigali, H. similis, H. sliteri, H. telatynensis, H. trocoidea yezoana, H. velata, H. ventriosa, H. wondersi

Hedbergella punctata

Citation: Hedbergella? punctata Michael 1973
taxonomic rank: Species
Type specimens: Plate 3, figs. 1-3; Plate 7, figs. 1, 2; Holotype: USNM 172791; Paratype: USNM 172792; Paratype: F.M. 6; Pessagno Collcction, University of Texas at Dallas.
Type age (chronostrat): Upper Albian
Type locality: Intersection of Calais, Westover Drive, and Firth Road at the southwestern edge of Westover Hills, Forth Worth, Tarrant County, north-central TX.
Type repository: Washington; USNM

Linked specimens: USNM-172791 USNM-172792

Current identification/main database link: Liuenella punctata (Michael, 1973)

Original Description

Test small; pores large relative to size of test, widely separated and evenly distributed over test surface; a low trochospire of 2.5 volutions of spherical chambers which increase in size gradually; usually 6 chambers in the last whorl; sutures relatively deep, radial; those of earlier whorl almost obscured; those of the last whorl clear and distinct. Primary aperture interiomarginal, extra-umbilical to spiroumbilical with large apertural lip; doubtful sutural supplementary apertures on spiral side, inferred due to small rounded depressions on the sutures; umbilical area very wide.

from punctatus -a -um (Latin) = punctured or dotted

Extra details from original publication
Remarks: Hedbergella (?) punctata, n. sp., is characterized by its pore pattern, spherical chambers, very wide umbilicus, massive thick portici; and deep sutures on its spiral side. This species shares characteristics of both Hedbergella Bronnimann and Brown and Loeblichella Pessagno. The primary aperture is extraumbilical to spiroumbilical; the umbilicus is quite wide and deep; and there are possible sutural supplementary apertures spirally. Such evidence may suggest that this species belongs to the genus Loeblichella. On the other hand the type of coiling, shape of chambers, the large apertural lip suggest a relationship to Hedbergella. Its distinctive pore pattcrn is also characteristic of H. implicata and H. intermedia, which both possess features characteristic of true Hedbergella.
Range: Upper Albian. H. implicata Subzone and H. punctata Subzone of the Favusella washitensis Assemblage Zone.
Occurrence: H. (?) punctata, n. sp., was found in the Kiamichi, Duck Creek, and Denton Formations of North Central Texas.


Michael, F. Y. (1973). Planktonic foraminifera from the Comanchean Series (Cretaceous) of Texas. Journal of Foraminiferal Research. 2 (1972)(4): 200-220. gs


Hedbergella punctata compiled by the pforams@mikrotax project team viewed: 18-7-2024

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Comments (2)

Le Coze

Michael, 1973 not 1972 ref in your biblio

Jeremy Young(UK)

corrected now, thanks