An Nuwfaliyah - Greir Bu Hascisc Formation (Oligocene of Libya)

Where: Libya (29.7° N, 17.3° E: paleocoordinates 27.7° N, 15.2° E)

• coordinate stated in text

• local area-level geographic resolution

When: Greir Bu Hascisc Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

• The Greir Bu Hascisc Formation is alternations of limestones, dolomites, chalks, and chalky marls with intercalations of foram coquina and clay beds. The basal beds are hard, cheryu and dolomitic limestones.. The upper part contains white coquinoid dolomitic limestyones. The formation is 70-75 m (230-246 ft) thick in the eastern part.

• group of beds-level stratigraphic resolution

Environment/lithology: dolomitic, shelly/skeletal limestone and claystone

• No paleoenvironmental data provided.
• Alternations of limestones, dolomites, chalks, and chalky marls with intercalations of foram coquina and clay beds

Size classes: macrofossils, microfossils

Collection methods: No detailed collection data reported.

Primary reference: E. E. Tawadros. 2001. Geology of Egypt and Libya 1-468 [A. Miller/A. Hendy/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 42132: authorized by Austin Hendy, entered by Austin Hendy on 24.07.2004, edited by Wolfgang Kiessling

Creative Commons license: CC BY (attribution)

Taxonomic list

• Collection based on taxa listed in text as typical of formation. Include only porifera. Page 285.
unclassified
  -
Anthozoa
 Scleractinia - Acroporidae
"Astraeopora decaphylla" = Astreopora
"Astraeopora decaphylla" = Astreopora stony coral
 Scleractinia - Pocilloporidae
Stylophora parvistella Chevalier 1961 stony coral
Stylophora thirsiformis Michelotti 1847 stony coral
 Scleractinia - Astrocoeniidae
 Scleractinia - Actinacididae
Actinacis rollei Reuss 1864 stony coral
 Scleractinia - Heliastraeidae
"Athecastraea hufrahensis" = Heliastrea (Athecastraea)
"Athecastraea hufrahensis" = Heliastrea (Athecastraea) stony coral
 Scleractinia - Merulinidae
 Scleractinia - Agathiphylliidae
Agathiphyllia gregaria Catullo 1852 stony coral