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-372604
Current identification/main database link: Rugoglobigerina hexacamerata Brönnimann, 1952
Original Description
Size:
Holotype: Maximum diameter 0.375 mm.
Diameter of umbilicus O.125mm.
End chamber: radial diameter 0.115mm.; tangential diameter O.15mm.; thickness 0.175mm.
Extra details from original publication
The subspecies hexacamerata and pustulata are so closely related that at first they were lumped together. The more detailed investigation proved that the two types can be separated,not only on account of the difference in the number of adult chambers but also by the large, subcircular umbilicus and by the predominant meridional ornamentation in the last whorl of R.reiclieli hexacamerata. From the morphologically similar subspecies pennyi of the rugosa group (0.4-0.425mm.),it is separated by the smaller size and the more delicate ornamentation.
Brönnimann, P. (1952c). Brönnimann, P. (1952). Globigerinidae from the Upper Cretaceous (Cenomanian-Maestrichtian) of Trinidad, B. W. I. Bulletins of American Paleontology. 34(140): 1-70. Bulletins of American Paleontology. 34(140): 1-70. gsReferences:
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Rugoglobigerina reicheli hexacamerata compiled by the pforams@mikrotax project team viewed: 18-7-2025
Short stable page link: https://mikrotax.org/pforams/index.php?id=132202 Go to Archive.is to create a permanent copy of this page - citation notes |
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Comments (2)
Current identification/main database link: Rugoglobigerina hexacamerata (Bronnimann, 1952) [no brackets]
corrected, thanks