Where: Nile Valley, Egypt (30.1° N, 31.3° E: paleocoordinates 16.5° N, 26.3° E)
• coordinate based on political unit
• small collection-level geographic resolution
When: Lopha pomeli zone, Duwi Formation, Early/Lower Maastrichtian (70.6 - 66.0 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: calcareous limestone and marl
Primary reference: A. S. Kassab and A. S. Mohamed. 1996. Upper Cretaceous macrofossils from the Duwi Formation of the Nile Valley, southern Egypt. Neues Jahrbuch fuer Geologie und Palaeontologie-Abhandlungen 200(3):259-284 [M. Patzkowsky/K. Layou]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 3591: authorized by Mark Patzkowsky, entered by Karen Layou on 05.08.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Foraminifera | |
Hedbergella holmdelensis Olsson 1964 | |
Rugoglobigerina rugosa Plummer 1927 | |
Heterohelix globulosa, "Pseudoguembelina excolata" = Guembelina excolata, Guembelitria cretacea, Pseudoguembelina costulata
Heterohelix globulosa Ehrenberg 1840
"Pseudoguembelina excolata" = Guembelina excolata Cushman 1926
Guembelitria cretacea Cushman 1933
Pseudoguembelina costulata Cushman 1938 | |
Bivalvia | |
Hyotissa semiplana Sowerby 1825 oyster | |
"Lopha lunata" = Ambigostrea tripolitana, "Lopha renoui" = Ambigostrea villei
"Lopha lunata" = Ambigostrea tripolitana Krumbeck 1906 oyster
"Lopha renoui" = Ambigostrea villei Coquand 1862 oyster | |
"Ostrea scaniensis" = Acutostrea incurva, Lopha pomeli, Cameleolopha pauciplicata, Abruptolopha abrupta
"Ostrea scaniensis" = Acutostrea incurva Nilsson 1827 oyster
Lopha pomeli oyster
Cameleolopha pauciplicata oyster
Abruptolopha abrupta oyster | |