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

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

Geography
Country:Japan
Coordinates: 35.1° North, 135.2° East (view map)
Paleocoordinates:1.9° North, 129.8° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:hand sample
Time
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: 254.14 - 251.902 m.y. ago
Stratigraphy
Formation:Ajima
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
Taphonomy
Modes of preservation:body
Size of fossils:microfossils
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:131351
Authorizer:J. Pálfy Enterer:A. Kocsis
Created:2012-07-23 20:02:18 Last modified:2025-02-22 15:12:02
Access level:the public Released:2012-07-23 20:02:18
Creative Commons license:CC0
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]