Biyo Dader Tug: Callovian - Oxfordian, Somalia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Aporrhaidae
Aporrhais cf. haudnervatus
Gastropoda - Heterostropha - Bullinidae
Cylindrites cf. striatus (Lissajous 1923)
recombined as Sulcoactaeon striata
Bivalvia - Lucinida - Mactromyidae
Mactromya aequalis Agassiz 1843
Bivalvia - Pholadomyida - Pholadomyidae
Pholadomya lirata (Sowerby 1818)
Pholadomya (Homomya) inornata Sowerby 1837
recombined as Homomya inornata
Bivalvia - Pholadida - Ceratomyidae
Ceratomya wimmisensis (Gillieron 1886)
Bivalvia - Mytilida - Crenellidae
Mytilus (Musculus) somaliensis Cox 1935
recombined as Musculus somaliensis
Bivalvia - Ostreida - Gryphaeidae
Gryphaea costellata (Douvillé 1916)
Rhynchonellata - Rhynchonellida - Tetrarhynchiidae
Daghanirhynchia daghaniensis Muir-Wood 1935
Muir-Wood 1935
Daghanirhynchia macfadyeni Muir-Wood 1935
Muir-Wood 1935
Somalirhynchia tumida Muir-Wood 1935
Muir-Wood 1935
see common names

Geography
Country:Somalia
Coordinates: 9.9° North, 43.6° East (view map)
Paleocoordinates:11.8° South, 28.1° East
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Jurassic
10 m.y. bin:Jurassic 5
Key time interval:Callovian - Oxfordian
Age range of interval:165.30000 - 154.80000 m.y. ago
Stratigraphy
Formation:Bihen Limestone
Stratigraphic resolution:group of beds
Stratigraphy comments: 2 levels: lower Callovian unit and upper Argovian unit
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:93017
Authorizer:W. Kiessling Enterer:U. Merkel
Modifier:U. Merkel Research group:marine invertebrate
Created:2009-12-22 00:26:36 Last modified:2009-12-22 02:31:20
Access level:the public Released:2009-12-22 00:26:36
Creative Commons license:CC BY
Reference information

Primary reference:
31424. L. R. Cox. 1935. Jurassic Gastropoda and Lamellibranchia. The Mesozoic Palaeontology of British Somaliland, Geology and Palaeontology of British Somaliland, II 148-197 [W. Kiessling/U. Merkel]

Secondary references:

31423 H. M. Muir-Wood. 1935. Jurassic Brachiopoda. The Mesozoic Palaeontology of British Somaliland, Geology and Palaeontology of British Somaliland, II 75-147 [W. Kiessling/U. Merkel]