Petruny MS Thesis TDP Site 33 (Cretaceous of Tanzania)

Where: Lindi, Tanzania (10.0° S, 39.6° E: paleocoordinates 31.1° S, 28.4° E)

• coordinate stated in text

When: T. globotruncanoides foram zone, Lindi Formation (Kilwa Group), Early/Lower Cenomanian (99.6 - 93.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: offshore; lithified, muddy siltstone and lithified sandstone

• The main lithologies from the surface to the bottom of the hole are light olive gray and olive black, massive, clayey siltstones and claystones (Figs. 11 and 12a), with common oxide stains along fractures due to modern weathering. Laminated fabrics are very rare, and no bioclasts are visible. Cores TDP33/4, 12 and 13 present intervals with up to medium-grained, well-lithified sandstones

•(Fig. 12b–d). Some of the sandstones show mm- to cm-sized, greenish siltstone clasts (Fig. 12b). Core TDP33/11 exhibits a 35-cm-thick, light gray, well- ithified carbonate layer with abundant.

•quartz grains (Fig. 11).

Size class: microfossils

Preservation: original calcite

Collected by Tanzania Drilling Project Expedition in 2008; reposited in the UNSM

Collection methods: bulk, core, smear slide,

Primary reference: À J. Berrocoso, B. T. Huber, K. G. MacLeod, M. R. Petrizzo, J. A. Lees, I. Wendler, H. Coxall, A. K. Mweneinda, F. Falzoni, H. Birch, J. M. Singano, S. Haynes, L. Cotton, J. Wendler, P. R. Bown, S. A. Robinson, and J. Gould. 2012. Lithostratigraphy, biostratigraphy and chemostratigraphy of Upper Cretaceous and Paleogene sediments from southern Tanzania: Tanzania Drilling Project Sites 27-35. Journal of African Earth Sciences 70:36-57 [M. Uhen/L. Petruny]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 179316: authorized by Mark Uhen, entered by Loren Petruny on 11.06.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Parathalmanninella appenninica
Coccolithophyceae
 Eiffellithales - Chiastozygaceae
Staurolithites gausorhethium
 Prymnesiophycidae - Prymnesiophycidae
Lithraphidites acutus
Lithraphidites acutus Verbeek and Manivit 1977
Foraminifera
 Globigerinaceae - Globotruncanidae
"Praeglobotruncana stephani" = Globotruncana stephani
"Praeglobotruncana stephani" = Globotruncana stephani Gandolfi 1942
 Globigerinina - Rotaliporidae
Thalmanninella globotruncanoides, Thalmanninella brotzeni
 Globigerinina - Hedbergellidae
Praeglobotruncana gibba
 Globigerinoidea - Globorotaliidae
"Praeglobotruncana delrioensis" = Globorotalia delrioensis
"Praeglobotruncana delrioensis" = Globorotalia delrioensis Plummer 1931