YEZ-7, junction of Kanajirisawa and Obirashibe-gawa: Middle Turonian, Japan
collected by Hayashi

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Malacostraca - Decapoda - Palaeocorystidae
Malacostraca - Decapoda - Homolidae
Malacostraca - Decapoda - Retroplumidae
Archaeopus ezoensis (Nagao 1941)
see common names

Geography
Country:Japan
Coordinates: 44.1° North, 141.8° East (view map)
Paleocoordinates:51.6° North, 141.7° East (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Turonian 10 m.y. bin: Cretaceous 6
Key time interval: Middle Turonian Inoceramid zone:  Inoceramus hobetsensis
Age range of interval: 93.9 - 89.8 m.y. ago
Stratigraphy
Geological group:Yezo Formation:Saku
Stratigraphic resolution:bed
Stratigraphy comments: Pebble nodule from the MI? Member of the Middle Yezo Group
Lithology and environment
Primary lithology:nodular lithified "siliciclastic"
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collectors:Hayashi
Metadata
Database number:185008
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:decapod,marine invertebrate
Created:2017-04-04 23:43:05 Last modified:2025-02-22 15:12:02
Access level:the public Released:2017-04-04 23:43:05
Creative Commons license:CC0
Reference information

Primary reference:
41704.decapod H. Collins, Y. Kanie, and H. Karasawa. 1993. Late Cretaceous crabs from Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 172:292-310 [C. Schweitzer/E. Johnson/M. Clapham]