Graua Limestone: Bed 5: Early/Lower Aptian, Ethiopia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Orbitolinidae
Palorbitolina lenticularis
Praeorbitolina cormyi
Bivalvia - Ostreida - Gryphaeidae
Exogyra flabellata Goldfuss 1833
recombined as Ceratostreon flabellatum
Exogyra couloni
Bivalvia - Pectinida - Dimyidae
Atreta melleni
Bivalvia - Pectinida - Chondrodontidae
Chondrodonta cf. joannae
Bivalvia - Pectinida - Neitheidae
Neithea morrisi (Pictet and Renevier 1858)
see common names

Geography
Country:Ethiopia
Coordinates: 9.1° North, 41.8° East (view map)
Paleocoordinates:15.2° South, 28.5° East
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Barremian
Key time interval:Early/Lower Aptian
Age range of interval:121.40000 - 119.50000 m.y. ago
Stratigraphy
Formation:Amba Aradam Member:Graua Limestone
Local order:bottom to top
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology:burrows lithified wackestone
Secondary lithology:yellow marl
Includes fossils?Y
Includes fossils?Y
Environment:shallow subtidal indet.
Glacial or sequence phase:transgressive
Taphonomy
Size of fossils:macrofossils,microfossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Taxonomic list comments:marl = forams
limestone = all others
Metadata
Database number:46588
Authorizer:L. Ivany Enterer:P. Wall
Modifier:A. Hendy Research group:marine invertebrate,micropaleontology
Created:2005-01-20 09:59:11 Last modified:2007-02-03 21:53:28
Access level:the public Released:2005-01-20 09:59:11
Creative Commons license:CC BY
Reference information

Primary reference:
12436. A. Bosellini, A. Russo, and R. Schroeder. 1999. Stratigraphic evidence for an Early Aptian sea-level fluctuation: the Graua Limestone of south-eastern Ethiopia. Cretaceous Research 20:783-791 [L. Ivany/P. Wall/P. Wall]