Ankirihitra, unit 2c: Middle Callovian, Madagascar

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Reineckeiidae
Reineckeia delarochei Collignon 1958
Cephalopoda - Ammonitida - Perisphinctidae
Obtusicostites ranaivoi
Obtusicostites ankobensis
Hubertoceras hubertus Spath 1931
synonym of Obtusicostites devi
Obtusicostites ushas Spath 1931
synonym of Obtusicostites obtusicosta
Kinkeliniceras anygaster
Kinkeliniceras varuna Spath 1931
synonym of Kinkeliniceras angygaster
Kinkeliniceras cattalai Collignon 1958
synonym of Kinkeliniceras angygaster
Cephalopoda - Ammonitida - Oppeliidae
Ankobites saintoursi Collignon 1958
see common names

Geography
Country:Madagascar
Coordinates: 16.8° South, 46.5° East (view map)
Paleocoordinates:24.4° South, 24.2° 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:165.30000 - 161.50000 m.y. ago
Stratigraphy
Local section:Ankirihitra Local bed:2c
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: Reineckeia anceps and Hubertoceras mutans zone
Lithology and environment
Primary lithology: lithified marl
Secondary lithology: lithified "limestone"
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:98134
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate
Created:2010-09-21 06:39:41 Last modified:2010-09-21 09:39:41
Access level:the public Released:2010-09-21 06:39:41
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]