Echinoidea, Site 22, Fresnay, Paris basin: Early/Lower Hauterivian, France

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Spatangoida - Toxasteridae
Toxaster retusus (Lamarck 1816)
34 specimens
Echinoidea - Holasteroida - Holasteridae
Holaster intermedius
19 specimens
Echinoidea - Holectypoida - Holectypidae
Coenholectypus macropygus (Agassiz 1836)
1 specimen
see common names

Geography
Country:France
Coordinates: 48.3° North, 4.7° East (view map)
Paleocoordinates:39.0° North, 14.2° East
Basis of coordinate:based on nearby landmark
Geographic resolution:hand sample
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Hauterivian 10 m.y. bin:Cretaceous 2
Key time interval:Early/Lower Hauterivian
Age range of interval:132.60000 - 125.77000 m.y. ago
Stratigraphy
Formation:Calcaires à spatangues
Stratigraphic resolution:member
Lithology and environment
Primary lithology:glauconitic,gray,yellow poorly lithified sandy packstone
Includes fossils?Y
Environment:deep subtidal indet. Tectonic setting:cratonic basin
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:good
Temporal resolution:time-averaged
Collection methods and comments
Collection excludes:difficult macrofossils
Collection methods:surface (float),field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:68984
Authorizer:L. Villier Enterer:L. Villier
Modifier:L. Villier Research group:marine invertebrate
Created:2007-02-15 00:31:32 Last modified:2008-11-17 04:17:18
Access level:the public Released:2007-02-15 00:31:32
Creative Commons license:CC BY
Reference information

Primary reference:
19901. B. David. 1985. La variation chez les échinides irréguliers. Dimensions ontogénétiques, écologiques, évolutives. Thèse de l'Université de Dijon 1-302 [L. Villier/L. Villier]