Maromandia: Early/Lower Callovian, Madagascar

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Rhynchonellida - Cyclothyrididae
Rhynchonella pseudoinconstans Kitchin 1900
recombined as Torquirhynchia pseudoinconstans
Cephalopoda - Belemnitida - Belemnopseidae
Belemnopsis calloviensis
Cephalopoda - Ammonitida - Macrocephalitidae
Pleurocephalites sp.
Macrocephalites sp.
Bivalvia - Mytilida - Mytilidae
Modiolus glendayi
Bivalvia - Pectinida - Plicatulidae
Plicatula peregrina
Bivalvia - Ostreida - Palaeolophidae
Alectryonia gregarea (Sowerby 1816)
recombined as Actinostreon gregareum
Bivalvia - Nuculida - Nuculidae
Palaeonucula blanfordi
see common names

Coordinates: 14.2° South, 48.1° East (view map)
Paleocoordinates:23.1° South, 27.1° East
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Period:Jurassic Epoch:Middle Jurassic
Stage:Callovian 10 m.y. bin:Jurassic 5
Key time interval:Early/Lower Callovian
Age range of interval:164.70000 - 161.20000 m.y. ago
Stratigraphic resolution:group of beds
Stratigraphy comments: unit 1
Lithology and environment
Primary lithology: lithified argillaceous sandstone
Environment:marine indet.
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Database number:98095
Authorizer:W. Kiessling Enterer:U. Merkel
Modifier:U. Merkel Research group:marine invertebrate
Created:2010-09-20 07:25:54 Last modified:2010-09-20 10:31:46
Access level:the public Released:2010-09-20 07:25:54
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]