K 223 Alaita Hill: Callovian - Oxfordian, Ethiopia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Salenioida - Acrosaleniidae
1 specimen
Bivalvia - Ostreida - Ostreidae
11 specimens
Bivalvia - Mytilida - Crenellidae
1 specimen
Rhynchonellata - Rhynchonellida
11 specimens
Rhynchonellata - Rhynchonellida - Tetrarhynchiidae
3 specimens
7 specimens
Rhynchonellata - Terebratulida
8 specimens
Rhynchonellata - Terebratulida - Postepithyrididae
5 specimens
1 specimen
see common names

Geography
Country:Ethiopia State/province:Afar
Coordinates: 13.0° North, 40.5° East (view map)
Paleocoordinates:13.9° South, 37.6° East (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Jurassic Epoch: Middle Jurassic - Late Jurassic
Stage: Callovian - Oxfordian 10 m.y. bin: Jurassic 5
Key time interval: Callovian - Oxfordian
Age range of interval: 165.3 - 154.8 m.y. ago
Stratigraphy
Formation:Antalo Limestone
Stratigraphic resolution:group of beds
Stratigraphy comments: 20 m thick unit from the lower third of the 500 m thick Antalo Limestone
Lithology and environment
Primary lithology: lithified "limestone"
Environment:shallow subtidal indet.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:92924
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate
Created:2009-12-11 01:55:12 Last modified:2025-02-22 15:12:02
Access level:authorizer only Released:2011-12-11 01:55:12
Creative Commons license:CC0
Reference information

Primary reference:
31391. R. Jordan. 1971. Megafossilien des Jura aus dem Antalo-Kalk von Nord-Äthiopien [Jurassic megafossils from the Antalo Limestone of northern Ethiopia]. Beihefte zum Geologischen Jahrbuch 116:141-171 [W. Kiessling/U. Merkel]