Mamakiala River: Middle Callovian, Madagascar

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pholadomyida - Pholadomyidae
Goniomya sp. Agassiz 1842
Bivalvia - Pholadida - Ceratomyidae
Ceratomya sp. Sandberger 1864
Ceromya sp. Agassiz 1842
replaced by Ceratomya
Bivalvia - Trigoniida - Trigoniidae
Trigonia sp. Bruguière 1789
Cephalopoda - Phylloceratida - Phylloceratidae
Calliphylloceras sp. Spath 1927
Holcophylloceras sp. Spath 1927
Ptychophylloceras euphylum
Cephalopoda - Ammonitida - Perisphinctidae
Obtusicostites obtusicosta (Waagen 1875)
Obtusicostites aff. waageni Spath 1931
synonym of Obtusicostites obtusicosta
Obtusicostites cf. devi Spath 1931
Hubertoceras aff. arcicosta
synonym of Obtusicostites
Kinkeliniceras indra Spath 1931
synonym of Kinkeliniceras kinkelini
see common names

Geography
Country:Madagascar
Coordinates: 22.1° South, 44.5° East (view map)
Paleocoordinates:27.6° South, 19.0° East
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Middle Jurassic
Stage:Callovian 10 m.y. bin:Jurassic 5
Key time interval:Middle Callovian
Age range of interval:164.70000 - 161.20000 m.y. ago
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: unit 12
Lithology and environment
Primary lithology: lithified sandy marl
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:98183
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate
Created:2010-09-23 05:20:19 Last modified:2010-09-23 08:20:19
Access level:the public Released:2010-09-23 05:20:19
Creative Commons license:CC BY
Reference information

Primary reference:

8015.PGAP 1022H. Besairie and M. Collignon. 1972. Geologie de Madagascar I. Les Terrains Sedimentaires. Annales Geologiques de Madagascar 35:1-463 [A. Rees/A. Rees]