Un-14: Pelsonian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Entactinaria - Eptingiidae
Protozoa - Entactinaria - Hindeosphaeridae
Polycystinea - Spumellaria - Capnuchosphaeridae
Polycystinea - Spumellaria - Oertlispongidae
Polycystinea - Nassellaria - Spongosilicarmigeridae
Polycystinea - Nassellaria - Archaeosemantidae
Polycystinea - Nassellaria - Ruesticyrtiidae
Polycystinea - Nassellaria - Poulpidae
Poulpus sp. De Wever 1979
see common names

Geography
Country:Japan State/province:Aichi
Coordinates: 35.5° North, 137.2° East (view map)
Paleocoordinates:5.1° North, 135.8° East (Wright 2013)
Basis of coordinate:estimated from map
Time
Period: Triassic Epoch: Middle Triassic
Stage: Anisian 10 m.y. bin: Triassic 2
Key time interval: Pelsonian Other zone:  Triassocampe coronata
Age range of interval: 244.4 - 243.43 m.y. ago
Stratigraphy
Local section:Un Local bed:NA
Lithology and environment
Primary lithology: chert
Environment:basinal (siliceous)
Taphonomy
Modes of preservation:body,original silica
Size of fossils:microfossils
Collection methods and comments
Collection methods:bulk,field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:220815
Authorizer:W. Foster Enterer:W. Foster
Research group:micropaleontology
Created:2021-06-15 13:52:48 Last modified:2025-02-22 15:12:02
Access level:the public Released:2021-06-15 13:52:48
Creative Commons license:CC0
Reference information

Primary reference:
77163. A. Yao and K. Kuwahara. 1997. Radiolarian faunal change from Late Permian to Middle Triassic times (ぺルム紀新世から三畳紀中世にかけての放散虫群集の変遷). NOM, Spec 10:87-96 [W. Foster/W. Foster]