Where: Libya (32.7° N, 21.9° E: paleocoordinates 31.6° N, 20.7° E)
• coordinate stated in text
• basin-level geographic resolution
When: Al Faidiyah Formation, Early/Lower Miocene (23.0 - 16.0 Ma)
• LITHOSTRATIGRAPHIC RELATIONSHIPS: From the Al Faidiyah (formerly Faidia Fm of Pietersz, 1968), which disconformably overlies the Al Abraq Fm (Early-early Late Oligocene), the Al Bayda Fm, or the Al Majahir Fm (Cretaceous) and is overlain or interfingers with the Ar Rajmah Fm (Middle Miocene). AGE: Upper Late Oligocene-lower Middle Miocene, on the basis of microfossil (foraminiferal) biostratigraphy. Assigned here to an Early Miocene interval to avoid orphaning. THICKNESS: ranges from 10-160 m across its range.
• formation-level stratigraphic resolution
Environment/lithology: poorly lithified, green claystone and poorly lithified, shelly/skeletal, white, yellow, silty, calcareous marl
Size class: macrofossils
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 42143: authorized by Austin Hendy, entered by Austin Hendy on 24.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Echinoidea | |
Clypeaster (Paratinanthus) confusus sand dollar | |
Scutella subrotunda sand dollar
Parascutella circularis sand dollar | |
Gastropoda | |
Trochus sp. Linnaeus 1758 top snail | |
Cerithium sp. Bruguière 1789 cerith snail | |
"Turritella sulcifera" = Ispharina sulcifera
"Turritella sulcifera" = Ispharina sulcifera Deshayes 1832 turret shell | |
Conus sp. Linnaeus 1758 cone shell | |
Bivalvia | |
Cardium cf. schweinfurthi cockle | |
Dosinia orbicularia venus clam | |
Ostrea verleti oyster | |
Gryphaeostrea desioi oyster | |
Chlamys (Pecten) vezzanensis, "Chlamys (Pecten) substriatus" = Chlamys substriata, "Chlamys (Aequipecten) benedictus" = Aequipecten, "Chlamys (Pecten) malvinae" = Aequipecten malvinae, "Chlamys (Pecten) zitteli" = Camptonectes (Camptochlamys) zitteli, Spondylus crassicosta
Chlamys (Pecten) vezzanensis scallop
"Chlamys (Pecten) substriatus" = Chlamys substriata Roemer 1835 scallop
"Chlamys (Aequipecten) benedictus" = Aequipecten scallop
"Chlamys (Pecten) malvinae" = Aequipecten malvinae Dubois de Montpereux 1831 scallop
"Chlamys (Pecten) zitteli" = Camptonectes (Camptochlamys) zitteli Wohrmann and Koken 1892 scallop
Spondylus crassicosta Lamarck 1819 scallop | |
| |
Foraminifera | |
"Globigerina praebulloides" = Globigerina (Globigerina) praebulloides
"Globigerina praebulloides" = Globigerina (Globigerina) praebulloides Blow 1959 | |
Tubothalamea | |