Locality A, Ajima Formation, Ultra-Tamba Terrane: Changhsingian, Japan

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Latentifistularia
Gustefana sp. Kozur 1993
Protozoa - Latentifistularia - Cauletellidae
Triplanospongos angustus
Cauletella manica (De Wever and Caridroit 1984)
Protozoa - Albaillellaria - Albaillellidae
Neoalbaillella ornithoformis Takemura and Nakaseko 1981
Neoalbaillella cf. optima Ishiga et al. 1982
Albaillella levis Ishiga et al. 1982
Albaillella lauta Kuwahara 1992
Protozoa - Albaillellaria - Follicucullidae
Pseudoalbaillella spp.
synonym of Parafollicucullus
Pseudoalbaillella aff. longicornis Ishiga and Imoto 1980
see common names

Coordinates: 35.1° North, 135.2° East (view map)
Paleocoordinates:32.4° North, 111.3° East
Basis of coordinate:estimated from map
Geographic resolution:hand sample
Period:Permian Epoch:Lopingian
Stage:Changhsingian 10 m.y. bin:Permian 4
Key time interval:Changhsingian Zone: A. levis abundance zone and N. ornithoformis assemblage zone
Age range of interval:254.14000 - 251.90200 m.y. ago
Stratigraphy comments: Early Changshingian
Lithology and environment
Primary lithology: lithified cherty/siliceous mudstone
Includes fossils?Y
Includes fossils?Y
Environment:basinal (carbonate) Tectonic setting:deep ocean basin
Modes of preservation:body
Size of fossils:microfossils
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Database number:131351
Authorizer:J. Pálfy Enterer:A. Kocsis
Created:2012-07-23 20:02:18 Last modified:2012-07-23 05:02:18
Access level:the public Released:2012-07-23 20:02:18
Creative Commons license:CC BY
Reference information

Primary reference:

42405. Y. Sugamori. 2011. Late Permian radiolarians from the Ajima Formation of the Ultra-Tamba Terrane in the Sasayama area, southwest Japan. Palaeoworld 20:158-165 [J. Pálfy/A. Kocsis/A. Kocsis]