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.
Linked specimens: USNM-639320
Current identification/main database link: Leupoldina cabri (Sigal, 1952)
Original Description
Size:
Extra details from original publication
Remarks - The forms included here in Leupoldina protuberans display considerable variation. The last whorl consists of four to five chambers. Although two is the usual number of protuberances per chamber, specimens with three (pl. II, figs. 12, 13) do occasionally occur. The multiple protuberances are in many specimens restricted to the ultimate chamber but they are often also present in the penultimate and even earlier chambers. Such differences might appear a sufficient basis for the establishment of number of subspecies. However, to justify such a subdivision it will have to be shown first that some or all of these features are not merely mutations which occur throughout the range of the species, but instead reflect evolutionary trends within the genus.
Bolli, H. M. (1957c). The foraminiferal genus Schackoina Thalmann, emended, and Leupoldina, n. gen. in the Cretaceous of Trinidad, B. W. I. Eclogae Geologicae Helvetiae. 50(2): 271-278. gs References:
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Leupoldina protuberans compiled by the pforams@mikrotax project team viewed: 10-12-2023
Short stable page link: https://mikrotax.org/pforams/index.php?id=131834 Go to Archive.is to create a permanent copy of this page - citation notes |
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