Where: Sindh, Pakistan (25.7° N, 68.1° E)
• Paleocoordinates: 11.4° S, 65.7° E (Wright 2013)
• coordinate estimated from map
• hand sample-level geographic resolution
When: Bara Formation (Ranikot Group), Paleocene (66.0 - 56.0 Ma)
Environment/lithology: terrestrial; sandstone and siltstone
Size class: microfossils
Preservation: original sporopollenin
Collected by GPS and USGS
Collection methods: core, chemical, hydrochloric, hydroflouric
• Investigation by the Geological Survey of Pakistan (GPS) and the U.S. Geological Survey (USGS).
•
•"The samples were processed using normal palynological techniques of HCl; HF; HNO3; short centrifugation with soapy water to remove fines; heavy liquid separation using a ZnCl2 liquid of 1.8 s.g.; staining with Bismarck brown; and screening on 10 µm sieves. Thes residues were mounted in glycerine jelly."
Primary reference: N. Frederiksen. 1990. Palynological contribution to geologic mapping of coal-bearing upper Paleocene rocks in the lower Indus coal region, Pakistan. Open-File Report 90-243:43more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 237101: authorized by Phillip Jardine, entered by Hannah Morck on 19.11.2024
Creative Commons license: CC0 (CC0)
Taxonomic list
unclassified | |
Matanomadhiasculcites maximus, Incrotonipollis burdwanensis, Porocolpopollenites aff. ollivierae, "New genus A sp. B - tricolpate, baculate" sp.
| |
Angiospermae | |
unclassified | |
Angiospermae | |
Cupanieidites flaccidiformis soapberry | |
Retitrescolpites | |
Retitrescolpites "sp. A" Sah 1967 | |
Retistephanocolpites | |
Retistephanocolpites "6-colpate" Leidelmeyer 1966 | |
Angiospermae | |
Echitriporites trianguliformis van Hoeken-Klinkenberg 1964 | |
Cupanieidites "sp. A" Cookson and Pike 1954 soapberry | |
Psilodiporites hammenii | |
Psilodiporites hammenii Varma and Rawat 1963 |