Where: Lindi, Tanzania (10.0° S, 39.6° E: paleocoordinates 29.1° S, 29.2° E)
• coordinate stated in text
When: Helvetoglobotruncana helvetica foram zone, Lindi Formation (Kilwa Group), Early/Lower Turonian to Early/Lower Turonian (93.5 - 89.3 Ma)
• formation-level stratigraphic resolution
Environment/lithology: offshore; lithified, graded, nodular, sandy siltstone
•mm- to cm-thick, interbedded, olive gray, olive black and greenish
•black, claystones and sandy siltstones (Figs. 7g and 13), in which finely-laminated, possibly organic-rich intervals occur commonly.
•Cores TDP34/8, 10, 23, 24, 28, 29, 39 and 46 show cm-thick layers
•of light to medium gray, massive, lithified siltstones (Figs. 7g and
•13), with sharp to gradational top and bottom contacts. Light gray,
•thin sandstone partings are rare in this hole. Yellowish brown,
•mm- to cm-sized sand nodules and fragments of inoceramid shells
•are relatively common. Soft-sediment deformation (slightly inclined
•and convoluted laminations) is observed at intervals from
•cores TDP34/16–17, 33–38 and 41–44. Lamination is highly disturbed
•in parts of cores TDP34/36–37 (Figs. 7h and 13).
Size class: microfossils
Preservation: original calcite
Collected by Tanzania Drilling Project Expedition in 2008; reposited in the USNM
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 179309: authorized by Mark Uhen, entered by Loren Petruny on 11.06.2016
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Globothalamea | |
Stensioeina sp. Brotzen 1936
Gavelinella spp. Brotzen 1942 | |
Quadrimorphina sp. Finlay 1939 | |
Eponides sp. Montfort 1808 | |
Gyroidinoides spp. Reiss 1963 | |
Foraminifera | |
Whiteinella archaeocretacea Pessagno 1967 | |
Spiroplectinata sp. Cushman 1927 | |
Ammodiscus sp. Reuss 1862
Glomospira sp. Rzehak 1895 | |
Colomia ? sp., "Marginulina sp." = Cristellaria (Marginulina)
"Marginulina sp." = Cristellaria (Marginulina) d'Orbigny 1826 | |
Nodosariata | |
Saracenaria sp. Defrance 1824
Lenticulina spp. Lamarck 1804 | |
Frondicularia sp. Defrance 1824
Astacolus sp. de Montfort 1808
Dentalina sp. d'Orbigny 1826
Nodosaria sp. Lamarck 1812 | |
Foraminifera | |
Rotalipora spp. Brotzen 1942 | |
Gaudryina sp. d'Orbigny 1839 | |
Tubothalamea | |
Coccolithophyceae | |
Quadrum gartneri Prins and Perch-Nielsen 1977 |