Gelwanajan, 103: Callovian, Somalia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pectinida - Limidae
Lima harronis Dacque 1905
recombined as Plagiostoma harronis
Bivalvia - Mytilida - Mytilidae
Arcomytilus laitmairensis (de Loriol 1883)
Crinoidea - Millericrinida - Apiocrinitidae
Apiocrinus sp. Miller 1821
nomen vanum belonging to Apiocrinites
see common names

Geography
Country:Somalia
Coordinates: 10.6° North, 43.0° East (view map)
Paleocoordinates:10.9° South, 27.9° East
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Middle Jurassic
Stage:Callovian 10 m.y. bin:Jurassic 5
Key time interval:Callovian
Age range of interval:165.30000 - 161.50000 m.y. ago
Stratigraphy
Formation:Sa Wer Member:basal
Stratigraphic resolution:bed
Stratigraphy comments: sample 103
Lithology and environment
Primary lithology: lithified grainstone
Secondary lithology: lithified marl
Lithology description: well-bedded yellowish calcarenite and sandy marls, very fine, light gray limestones, sometimes dolomitized
Environment:shallow subtidal indet.
Taphonomy
Modes of preservation:body,cast
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:100388
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate
Created:2010-12-08 23:56:47 Last modified:2010-12-08 06:56:47
Access level:the public Released:2010-12-08 23:56:47
Creative Commons license:CC BY
Reference information

Primary reference:
34459. E. Abbate, G. Ficcarelli, C. Pirini Radrizzani, A. Salvietti, D. Torre and A. Turi. 1974. Jurassic sequences from the Somali coast of the Gulf of Aden. Rivista Italiana di Paleontologia e Stratigrafia 80(3):409-478 [W. Kiessling/U. Merkel]