Upper Haborogawa Fm - Sample CK00011, Chikubetsu River: Campanian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Diplomoceratidae
Cephalopoda - Ammonitida - Baculitidae
Baculites sp. Lamarck 1799
Cephalopoda - Ammonitida - Nostoceratidae
Cephalopoda - Ammonitida - Desmoceratidae
Damesites sp. Matsumoto 1942
Cephalopoda
Naefia matsumotoi Hirano 1991
Bivalvia - Protobranchia - Nuculidae
Acila sp. Adams and Adams 1858
Bivalvia - Myalinida - Inoceramidae
Sphenoceramus naumanni (Yokoyama 1890)
Gastropoda - Heterostropha - Ringiculidae
Avellana sp. d'Orbigny 1842
Gastropoda - Heterostropha - Siphonariidae
Anisomyon sp. Meek and Hayden 1860
Scaphopoda
Scaphopoda indet. Bronn 1862
see common names

Geography
Country:Japan
Coordinates: 44.4° North, 141.8° East (view map)
Paleocoordinates:52.4° North, 130.7° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Campanian 10 m.y. bin: Cretaceous 7
Key time interval: Campanian Inoceramid zone:  Inoceramus japonicus
Age range of interval: 83.6 - 72.2 m.y. ago
Stratigraphy
Geological group:Yezo Formation:Upper Haborogawa
Local section:Chikubetsu River Local bed:85 m
Local order:bottom to top
Regional section:Chikubetsu
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: Unit Uh, Upper Haborogawa Fm overlying Middle Haborogawa Fm of the Yezo Gp and underlying the Campanian-Maastrichtian Pankezawa Fm. THICKNESS: 10-40 m. AGE: Campanian-Maastrichtian, but at base of this succession and hence assigned a Campanian age,., Inoceramus japonicus zone. STRATIGRAPHIC POSITION: Upper portion of section, in 10-40 m thick parasequence near the top of the Upper Haborogawa Fm. Immediately above PBDB# 62215, 62216, and 62217. Correlative with PBDB# 62231 and 62232.
Lithology and environment
Primary lithology:bioturbation lithified mudstone
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Bioturbated mudstone. LITHIFICATION: Unknown lithification, assumed to be lithified.
Environment:offshore
Glacial or sequence phase:regressive
Geology comments: ENVIRONMENT: No environmental data reported. Assigned to Siliciclastic - offshore on the basis of facies description. TECTONIC SETTING: No tectonic data reported. SEQUENCE STRATIGRAPHY: No sequence stratigraphic data reported, assumed to be regressive as in coarsening upward sequence.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Collection method comments: COLLECTOR: Assumed to be collected by authors (Moriya and Hirano) and supplemented by collections of an earlier author Toshimitsu (see Toshimitsu 1988). REPOSITORY: Unknown repository, posibly Waseda University, Japan.
Taxonomic list comments:COMPLETENESS: Fairly comprehensive for all macrofauna. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature and species-level assignments.
Metadata
Database number:62233
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:G. Palazzo Research group:marine invertebrate
Created:2006-07-15 09:42:06 Last modified:2026-04-20 19:16:26
Access level:the public Released:2006-07-15 09:42:06
Creative Commons license:CC0
Reference information

Primary reference:
17980.1% 420K. Moriya and H. Hirano. 2001. Cretaceous stratigraphy in the Chikubetsu area, Hokaido. Journal of the Geological Society of Japan 107(3):199-214 [A. Miller/A. Hendy/A. Hendy]