Where: Libya (29.8° N, 16.6° E: paleocoordinates 23.2° N, 12.6° E)
• coordinate stated in text
• basin-level geographic resolution
When: Al Gata Member (Wadi Thamat Formation), Lutetian (47.8 - 41.3 Ma)
• LITHOSTRATIGRAPHIC RELATIONSHIPS: From the Al Gata Mbr of the Wadi Thamat Fm, which overlies the Al Jir (middle Eocene) and is overlain by the Thmed Al Qusur Mbr of the Wadi Thamat Fm (Priabonian). AGE: Lutetian, on the basis of microfossil (foraminiferal) and macrofossil biostratigraphy. THICKNESS: averages 90 m across its range.
• member-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, shelly/skeletal, green, yellow, calcareous marl
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: biostratigraphic analysis
PaleoDB collection 42138: authorized by Austin Hendy, entered by Austin Hendy on 24.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Foraminifera | |
Elphidium sp. Monfort 1808 | |
Nodosariata | |
Lagena sp. Walker and Boys 1784
Frondicularia sp. Defrance 1824 | |
Globothalamea | |
Nonion sp. Monfort 1808 | |
Discorbis sp. Lamarck 1804 | |
Bivalvia | |
"Ostrea exogyroides" = Praeexogyra dubiensis
"Ostrea exogyroides" = Praeexogyra dubiensis Contejean 1859 oyster | |
"Ostrea multicostata" = Cubitostrea multicostata, Ostrea oviola
"Ostrea multicostata" = Cubitostrea multicostata Deshayes 1832 oyster SUBSPECIES: O. multicostata strictiplicata
Ostrea oviola oyster | |
Carolia sp. Cantraine 1838 scallop | |
Gastropoda | |
"Rostellaria sp." = Tibia
"Rostellaria sp." = Tibia Röding 1798 true conch | |
Echinoidea | |
Echinolampas sp. Gray 1825 sea urchin |