holotype-626.jpg
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.
holotype-626.jpgLinked specimens: USNM-184704 USNM-184703
Current identification/main database link: Planoheterohelix stenopos (Masters 1976)
Original Description
Test biserial, laterally compressed, un-keeled; elongate; minimal increase in width throughout; profile slightly lobate. Chambers 16-17 in number; only slightly inflated; each succeeding chamber but little larger than previous one, wider than deep. Pores of fine to moderate diameter in rows between costae. Costae discontinuous, of moderate width and height; conforming to the curvature of the chamber as viewed from the side. Aperture a low, narrow arch with an imperforate lip, which increases in width toward contact with previous chamber. The sides of the relict apertural lips expressed as depressed triangular areas between adjacent chambers. Sutures straight, depressed, normal to edge, imperforate.
Masters, B. A. (1976). Planktonic foraminifera from the Upper Cretaceous Selma group, Alabama. Journal of Paleontology. 50(2): 318-330. gsReferences:
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Heterohelix stenopos compiled by the pforams@mikrotax project team viewed: 16-4-2021
Short stable page link: https://mikrotax.org/pforams/index.php?id=131799 Go to Archive.is to create a permanent copy of this page - citation notes |