Petruny MS Thesis TDP Site 35: Early/Lower Campanian - Late/Upper Campanian, Tanzania
collected by Tanzania Drilling Project Expedition 2008

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Radotruncana subspinosa
Radotruncana calcarata
Contusotruncana plummerae
Globotruncanidae
Globotruncanita elevata (Brotzen 1934)
Globotruncana ventricosa
Coccolithophyceae
Ceratolithoides aculeus (Stradner 1961)
Coccolithophyceae - Braarudosphaerales - Polycyclolithaceae
Uniplanarius trifidus (Stradner 1961)
Uniplanarius sissinghii Perch-Nielsen 1986
see common names

Geography
Country:Tanzania State/province:Lindi
Coordinates: 10.0° South, 39.7° East (view map)
Paleocoordinates:26.9° South, 31.0° East
Basis of coordinate:stated in text
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
Key time interval:Early/Lower Campanian - Late/Upper Campanian Foram zone: C. plummerae
Age range of interval:83.60000 - 72.10000 m.y. ago
Age estimate:78.82 to 75.57 Ma (age-depth)
Stratigraphy
Geological group:Kilwa Formation:Nangurukuru
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: lithified siltstone
Includes fossils?Y
Lithology description: Underlying a modern soil interval with yellowish orange, semilithified sands and claystones (cores TDP35/1), core TDP35/2 to the bottom of the hole show monotonous, greenish gray, occasionally black, massive to slightly-bedded, silty claystones and siltstones( Figs. 5d and 14). Bioturbation is moderate to nse in cores TDP35/8–11 and 16–22, and mainly consists of cm-sized, either oval or elongated burrows, with bedding-subparallel orientation (Fig. 5d). A 14-m-thick interval with abundant bioturbation was also found at the bottom of TDP Site 23 (upper lower CampanianContusotruncana plummerae Zone, according to Petrizzo et al., 2011; previously identified as Globotruncana ventricosa Zone in Jiménez Berrocoso et al., 2010), which might represent the lateral equivalent of the bioturbated sediments of TDP Site 35 (Fig. 14). Finally, irregular occurrences of bioclastic debris and disseminated pyrite are visible in cores TDP35/18–22.
Environment:offshore Tectonic setting:passive margin
Glacial or sequence phase:regressive
Taphonomy
Modes of preservation:body,original calcite,replaced with calcite
Size of fossils:microfossils
Abundance in sediment:abundant
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:bulk,core,smear slide,field collection
Reason for describing collection:biostratigraphic analysis
Museum repositories:UNSM
Collectors:Tanzania Drilling Project Expedition Collection dates:2008
Metadata
Database number:179317
Authorizer:M. Uhen Enterer:L. Petruny
Modifier:L. Petruny Research group:marine invertebrate,micropaleontology,taphonomy
Created:2016-06-11 18:55:38 Last modified:2016-07-03 14:19:42
Access level:the public Released:2016-06-11 18:55:38
Creative Commons license:CC BY
Reference information

Primary reference:
59257. 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]