Sa Warabis, 217-232: Oxfordian - Early Kimmeridgian, Somalia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Terebratulida - Postepithyrididae
Somalithyris macfadyeni Muir-Wood 1935
Lophrothyris cf. subsella (Leymerie 1846)
Rhynchonellata - Terebratulida - Zeilleriidae
Ornithella farquharsoni (Muir-Wood 1935)
Cephalopoda - Belemnitida - Belemnopseidae
Belemnopsis ex gr. tanganensis Futt 1894
Cephalopoda - Nautilida - Paracenoceratidae
Paracenoceras hexagonum (Sowerby 1826)
Cephalopoda - Ammonitida - Ataxioceratidae
Katroliceras (Torquatisphinctes) sp. Spath 1928
Lithacoceras sp. Hyatt 1900
Lithacoceras (Progeronia) sp. ()
Gastropoda - Pleurotomariidae
Pleurotomaria sp. Defrance 1826
Gastropoda - Proconulidae
Proconulus arabiensis (Newton 1908)
Gastropoda - Aporrhaidae
Alaria cf. berlieri
Bivalvia - Nuculida - Nuculidae
Palaeonucula cuneiformis (Sowerby 1840)
Bivalvia - Carditida - Astartidae
Astarte scytalis Holdhaus 1913
Bivalvia - Cardiida - Cardiidae
Protocardia somaliensis Cox 1935
Bivalvia - Mytilida - Mytilidae
Modiolus imbricatus (Sowerby 1818)
Bivalvia - Ostreida - Gryphaeidae
Gryphaea balli (Stefanini 1925)
Bivalvia - Ostreida - Pinnidae
Pinna sp. Linnaeus 1758
Bivalvia - Arcida - Parallelodontidae
Grammatodon (Indogrammatodon) egertonianus (Stoliczka 1865)
see common names

Geography
Country:Somalia
Coordinates: 10.2° North, 43.1° East (view map)
Paleocoordinates:11.7° South, 27.8° East
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period: Jurassic Epoch: Late Jurassic
Stage: Oxfordian - Kimmeridgian 10 m.y. bin: Jurassic 5
Key time interval: Oxfordian - Early Kimmeridgian
Age range of interval: 161.5 - 152.2 m.y. ago
Stratigraphy
Formation:Sa Wer Member:upper
Stratigraphic resolution:group of beds
Stratigraphy comments: samples 217-232
Lithology and environment
Primary lithology: lithified "limestone"
Secondary lithology: lithified calcareous marl
Lithology description: thick beds of gray calcareous marls and limestones
Environment:deep 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:100372
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate
Created:2010-12-08 20:22:46 Last modified:2010-12-08 03:22:46
Access level:the public Released:2010-12-08 20:22:46
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]