Collections of Hans M. Bolli from Cretaceous Formations from Trinidad:

 

T.L.L. benthic type assemblage slides to benthic foraminifera from the Guayaguayare weell No. 163, Marac Well No. 1, and Morne Diablo Well No. 34 from Trinidad.

 

The collection comprises the following zonal slides:

 

Globotruncana Y zone

Globotruncana 1/3 zone

Globotruncana12 zone

Globotruncana 7 zone

Globotruncana 1b/11 zone

Globotruncana 1/2/3 zone

Globotruncana 26 zone (Gautier Formation)

Globotruncana 1/18/21 zone

Globotruncana 84 zone (Gautier Formation)

Globotruncana 1/21 zone

Globotruncana 21 zone (Naparima Hill Formation)

Globotruncana 15/21 zone (Gautier Formation)

 

Included:

• List with identifications to species (to be compared with the Newton List given below).
• A complete list of T.L.L. benthic and planktic foraminiferal species by T.L.L. code with translation of T.L.L. codes to scientific names, around the year 1956 (this list was also found in Box 65 of the Kugler archive in file "Miscellaneous papers by Bullen Newton", and subsequently called "The Newton List"). Compare species names with the "Washington Zonal Chart" given below.
• A copy of the "Washington Zonal Chart": This document was found in Box 53 of the Kugler archive in file Correspondence Hans Bolli. It is a compilation of Cretaceous through Cenozoic foraminiferal zonal markers and their internal codes used by T.L.L. in 1956 with cross-references to the scientific names, that were later published in the plates in Loeblich, Tappan et al. (1957). Studies in Foraminifera, U.S.N.M. Bulletin 215. Note in this context, that in publications only scientific names were given, while sample numbers in museum collections are frequently labelled with internal T.L.L. codes.
• Correlation scheme of foraminiferal zones by J. Frampton (late 1980ies).
• For cross-correlation of Shell zones and Texaco foraminiferal zonal codes from the Miocene and Oligocene see also Fieldbook #50 from Hans G. Kugler (1959-1960).
• Reprint to Brönnimann, P. (1952). Globigerinidae from the upper Cretaceous (Cenomanian-Maestrichtian) of Trinidad, B.W.I. Bulletins of American Paleontology, vol. 34, No. 140, pp. 1-61. is deposited alongside this collection. Note: Although topotypes are mentioned to be deposited in the Museum of Natural History, Basel no topotype collection to P. Brönnimann (1952) were be found so far (curatorial remark, 3 June 2020).

 

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