Where: Libya (29.4° N, 15.7° E: paleocoordinates 18.4° N, 11.9° E)
• coordinate stated in text
• basin-level geographic resolution
When: Upper Tar Member (Ziman Formation), Danian (66.0 - 61.6 Ma)
• LITHOSTRATIGRAPHIC RELATIONSHIPS: From the Upper Tar Mbr of the Zimam Fm, which disconformably overlies the Lower Tar Mbr (Maastrichtian) and Bin Affin Mbr (Maastrichtian), and is overlain by the Had Mbr (Late Paleocene). AGE: Danian, on the basis of microfossil (foraminiferal) and macrofossil biostratigraphy. THICKNESS: ranges from 3-70 m across its range.
• member-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, shelly/skeletal, calcareous sandstone and lithified, calcareous siltstone
Size classes: macrofossils, microfossils
Collection methods: surface (in situ),
• COLLECTORS: Not stated, possibly multiple collectors. REPOSITORY: Unknown.
Primary reference: M. F. Megerisi and V. D. Mamgain. 1980. The Upper Cretaceous-Tertiary Formations of northern Libya: a synthesis. Department of Geological Researches and Mining Bulletin 12:1-85 [A. Hendy/A. Hendy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 77235: authorized by Austin Hendy, entered by Austin Hendy on 06.01.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Cephalopoda | |
"Eutrephoceras cf. desertorum" = Cimomia desertora
"Eutrephoceras cf. desertorum" = Cimomia desertora Quaas 1902 nautiloid | |
Gastropoda | |
Turritella sexlineata, "Turritella (Torcula) forgemoli" = Torcula
Turritella sexlineata Roemer 1841 turret shell
"Turritella (Torcula) forgemoli" = Torcula turret shell | |
Bivalvia | |
Nucula leia nut clam
Nucula libyca nut clam | |
Pycnodonta vesicularis, "Ostrea cellae" = Liostrea cellae
Pycnodonta vesicularis Lamarck 1806 oyster
"Ostrea cellae" = Liostrea cellae de Stefani 1913 oyster | |
Meretrix sp. Lamarck 1799 venus clam | |
Acanthocardia becksii, "Trachycardium productum" = Granocardium productum
Acanthocardia becksii Muller 1847 cockle
"Trachycardium productum" = Granocardium productum Sowerby 1832 cockle | |
Venericardia sp., Glyptoactis (Baluchicardia) ameliae, Glyptoactis (Baluchicardia) beaumonti, Cardita libyca
Venericardia sp. Lamarck 1801 clam
Cardita libyca clam | |
Echinoidea | |
"Echinobrissus (Nucleolites) pannonicus" = Nucleolites
"Echinobrissus (Nucleolites) pannonicus" = Nucleolites sea urchin | |
Hemiaster nucleus heart urchin
Hemiaster frontacutus heart urchin | |
Foraminifera | |
Tubothalamea | |
Quinqueloculina sp. d'Orbigny 1826 | |
Foraminifera | |
Gaudryina sp. d'Orbigny 1839 | |
Globothalamea | |
Valvulineria sp. Cushman 1926 | |
Gavelinopsis sp. Hofker 1951 | |
Cibicides sp. Monfort 1808 | |
Foraminifera | |
Spiroplectammina paleocenica Cushman 1947 | |
Nodosariata | |
Vaginulina sp. d'Orbigny 1826 |