Petruny MS Thesis TDP Site 24B (Cretaceous to of Tanzania)

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

• Paleocoordinates: 26.9° S, 34.9° E (Wright 2013)

• coordinate stated in text

When: Lindi Formation (Kilwa Group), Early/Lower Cenomanian to Early/Lower Cenomanian (100.5 - 93.9 Ma)

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

• Like TDP Site 24, the dominant lithologies in TDP Site 24B are mm- to cm-thick, interbedded, dark gray siltstones and finegrained sandstones (Fig. 9). A light brown, fine- to medium-grained sandstone interval is visible between 5 m and 7.42 m. A few light gray, fine-grained sandy partings also appear throughout the cores. No bioturbation or fossils are observed.

Size class: microfossils

Preservation: original calcite, replaced with calcite

Collected by Tanzania Drilling Project Expedition in 2007; reposited in the USNM

Collection methods: core, smear slide,

Primary reference: Á Jiménez Berrocoso, K. G. MacLeod, B. T. Huber, J. A. Lees, I. Wendler, P. R. Bown, A. K. Mweneinda, C. I. Londoño, and J. M. Singano. 2010. Lithostratigraphy, biostratigraphy and chemostratigraphy of Upper Cretaceous sediments from southern Tanzania: Tanzania drilling project sites 21-26. Journal of African Earth Sciences 57:47-69 [M. Uhen/L. Petruny]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 179883: authorized by Mark Uhen, entered by Loren Petruny on 03.07.2016

Creative Commons license: CC0 (CC0)

Taxonomic list

Coccolithophyceae
 Braarudosphaerales - Polycyclolithaceae
Eprolithus moratus Stover 1966
 Eiffellithales - Chiastozygaceae
 Prymnesiophycidae - Prymnesiophycidae
Lithraphidites acutus Verbeek and Manivit 1977
 Stephanolithiales - Stephanolithiaceae