Soaravikely: Early/Lower Callovian, Madagascar

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Ostreida - Palaeolophidae
Lopha gregarea (Sowerby 1816)
recombined as Actinostreon gregareum
Bivalvia - Carditida - Astartidae
Astarte mulleri
Bivalvia - Pholadida - Ceratomyidae
Ceromya concentrica (Sowerby 1825)
Cephalopoda - Phylloceratida - Phylloceratidae
Calliphylloceras mediterraneum
Calliphylloceras disputabile (Zittel 1869)
Holcophylloceras mediterraneum (Neumayr 1871)
Ptychophylloceras feddeni (Waagen 1875)
Cephalopoda - Ammonitida - Perisphinctidae
Choffatia recuperoi
Cephalopoda - Ammonitida - Lytoceratidae
Thysanolytoceras adeloides (Kudernatsch 1852)
recombined as Lytoceras eudesianum adeloides
var. indica
Cephalopoda - Ammonitida - Macrocephalitidae
Indocephalites chrysoolithicus
Indocephalites diadematus
Indocephalites aff. transitorius
Nothocephalites cf. semilaevis
Dolikephalites aff. gracilis
Dolikephalites aff. typicus
Dolikephalites flexuosus
Macrocephalites chariensis
Macrocephalites formosus
Echinoidea - Clypeidae
Echinopygus cf. cottreaui
synonym of Pygurus
see common names

Geography
Country:Madagascar State/province:Toliara
Coordinates: 20.3° South, 45.4° East (view map)
Paleocoordinates:26.7° South, 21.0° East
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
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
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: unit 1
Lithology and environment
Primary lithology: lithified 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:98171
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate
Created:2010-09-23 00:59:44 Last modified:2010-09-23 03:59:44
Access level:the public Released:2010-09-23 00:59:44
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]