Ihopy: Middle Callovian, Madagascar

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Oppeliidae
Sindeites madagascariensis
Ankobites saintoursi Collignon 1958
Bonarellia fornix (Sowerby 1840)
recombined as Chanasia fornix
Bonarellia ratoariveloi Collignon 1958
Cephalopoda - Ammonitida - Perisphinctidae
Choffatia balinensis (Neumayr 1871)
recombined as Homoeoplanulites balinensis
Choffatia aff. euryptycha
Obtusicostites sp.
Kinkeliniceras ex gr. varuna Spath 1931
synonym of Kinkeliniceras angygaster
Sivajiceras sp.
Subgrossouvria gudjinsirensis (Waagen 1875)
Cephalopoda - Ammonitida - Reineckeiidae
Kellawaysites oxyptychoides
Reineckeia rehmanni (Oppel 1862)
recombined as Rehmannia rehmanni
Reineckeia anceps (Reinecke 1818)
Reineckeites oxyptychoides
Reineckeites oxyptycha
Reineckeites rehmanni
Cephalopoda - Ammonitida - Lytoceratidae
Thysanolytoceras adeloides (Kudernatsch 1852)
recombined as Lytoceras eudesianum adeloides
Cephalopoda - Phylloceratida - Phylloceratidae
Calliphylloceras disputabile (Zittel 1869)
Bivalvia - Nuculida - Nuculidae
Palaeonucula kaoraensis
see common names

Geography
Country:Madagascar
Coordinates: 16.6° South, 45.8° East (view map)
Paleocoordinates:23.8° South, 23.8° 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
Stratigraphic resolution:bed
Stratigraphy comments: unit 2, 20 m thick
Lithology and environment
Primary lithology: lithified marl
Secondary lithology: lithified "limestone"
Lithology description: marl with marly limestone intercalations
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:98157
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate
Created:2010-09-22 01:29:43 Last modified:2010-09-22 04:29:43
Access level:the public Released:2010-09-22 01:29:43
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]