Inuyama TR4A-OY-8: Longobardian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Entactinaria - Hindeosphaeridae
Polycystinea - Nassellaria - Ultranaporidae
Polycystinea - Nassellaria - Ruesticyrtiidae
unclassified
Cyclostomi - Conodontophorida - Gladigondolellidae
Cyclostomi - Conodontophorida - Gondolellidae
see common names

Geography
Country:Japan
Coordinates: 35.4° North, 137.0° East (view map)
Paleocoordinates:8.6° North, 137.7° East (Wright 2013)
Basis of coordinate:estimated from map
Time
Period: Triassic Epoch: Middle Triassic
Stage: Ladinian 10 m.y. bin: Triassic 2
Key time interval: Longobardian Conodont zone:  Mazzaella carnica
Age range of interval: 239.48 - 237 m.y. ago
Stratigraphy
Stratigraphy comments: radiolarian zone: Muelleritortis cochleata; studied sections are in the Kamiaso unit, which consists of thrust sheets of sedimentary sequences containing Triassic to Lower Jurassic bedded cherts and overying Middle Jurassic clastic rocks (sandstones, mudstone); studied thin sections (N and O) are located in the CH-2 thrust sheet
Lithology and environment
Primary lithology:red chert
Includes fossils?Y
Environment:basinal (siliceous)
Geology comments: absence of carbonate rocks suggests that the primary depositional site was deeper than CCD, and beyond the reach of terrigenous clastic material
Taphonomy
Modes of preservation:body
Size of fossils:microfossils
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:211412
Authorizer:B. Seuss Enterer:B. Seuss
Modifier:B. Seuss Research group:marine invertebrate
Created:2020-07-16 08:37:39 Last modified:2025-02-22 15:12:02
Access level:the public Released:2020-07-16 08:37:39
Creative Commons license:CC0
Reference information

Primary reference:
78711. Y. Tomimatsu, T. Nozaki, H. Sato, Y. Takaya, J.I. Kimura, Q. Chang, H. Naraoka, M. Rigo, and T. Onoue. 2021. Marine osmium isotope record during the Carnian “pluvial episode” (Late Triassic) in the pelagic Panthalassa Ocean. Global and Planetary Change 197 [B. Seuss/B. Seuss]