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.
Current identification/main database link: Dipsidripella danvillensis (Howe&Wallace 1932)
Original Description
Test free, small, sinistrally coiled, low trochospiral, biconvex, equatorial periphery quinquelobate, axial periphery
rounded. Wall calcareous, thin, perforate, surface spinose. Chambers inflated, 12, arranged in 2 whorls, with 5 in the first and 5 1/2 in the second whorl; proloculus diameter 0·02 mm. Sutures on the spiral side radial to slightly recurved, depressed; radial on the umbilical side, depressed. Umbilicus small, open. Aperture, a low arch, interiomarginal, umbilical-extraumbilical.
Size:
Extra details from original publication
Test coiling of G. inconspicua aculeata in the type samples is: F 5179A, 7 dextral and 35 sinistral; F 5179B, 5 dextral and 20 sinistral specimens.
The preference for sinistral coiling is common to both subspecies and is maintained throughout their ranges.
In the type and other samples there is a wide range of variation in the degree of development of spines on the test surface which are occasionally larger than the holotype spines as in the paratype from sample F 5179B (No. 125).
The subspecific name is taken from the Latin aculeatus meaning "prickly""."
Editors' Notes
Huber, B. T., Olsson, R. K. & Pearson, P. N. (2006). Taxonomy, biostratigraphy, and phylogeny of Eocene microperforate planktonic foraminifera (Jenkinsina, Cassigerinelloita, Chiloguembelina, Streptochilus, Zeauvigerina, Tenuitella, and Cassigerinella) and Problematica (Dipsidripella). In, Pearson, P. N., Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication . 41(Chap 16): 461-508. gs O Jenkins, D. G. (1966b). Planktonic foraminiferal zones and new taxa from the Danian to lower Miocene of New Zealand. New Zealand Journal of Geology and Geophysics. 8 [1965](6): 1088-1126. gs References:

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Globorotalia inconspicua aculeata compiled by the pforams@mikrotax project team viewed: 10-9-2026
Short stable page link: https://mikrotax.org/pforams/index.php?id=131152 Go to Archive.is to create a permanent copy of this page - citation notes |
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