Obata locality 3, Loc. IK. M4-PII: Cenomanian - Turonian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Tetragonitidae
Cephalopoda - Ammonitida - Diplomoceratidae
Cephalopoda - Ammonitida - Nostoceratidae
? Didymoceras sp. Hyatt 1900
Osteichthyes - Pterosauria - Pteranodontidae
1 specimen
NSM-PV15005, several pterosaur bones
Kellner et al. 2016
see common names

Geography
Country:Japan State/province:Hokkaido
Coordinates: 43.2° North, 141.8° East (view map)
Paleocoordinates:49.8° North, 145.4° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Cenomanian - Turonian 10 m.y. bin: Cretaceous 5 - Cretaceous 6
Key time interval: Cenomanian - Turonian
Age range of interval: 100.5 - 89.8 m.y. ago
Stratigraphy
Geological group:Yezo Formation:Mikasa
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:black "limestone"
Includes fossils?Y
Lithology description: "Hard black limestone"
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Collection method comments: NSM PV, National Science Museum, Tokyo, Japan
Metadata
Database number:94681
Authorizer:R. Butler Enterer:R. Butler
Modifier:R. Butler Research group:vertebrate
Created:2010-03-09 01:58:32 Last modified:2025-02-22 15:12:02
Access level:the public Released:2010-03-09 01:58:32
Creative Commons license:CC0
Reference information

Primary reference:
32250. I. Obata, Y. Hasegawa, and H. Otsuka. 1972. Preliminary report on the Cretaceous reptile fossils from Hokkaido. Memoirs of the National Science Museum 5:213-222 [R. Butler/R. Butler/R. Butler]

Secondary references:

53158 T. Kamei. 1976. A short history of vertebrate paleontology in Japan. Transactions and Proceedings of the Palaeontological Society of Japan, New Series 100(supplement):50-57 [M. Carrano/M. Carrano]
59167 A. W. A. Kellner, F. R. Costa, X. Wang and X. Cheng. 2016. Redescription of the first pterosaur remains from Japan: the largest flying reptile from Asia. Historical Biology 28:304-309 [R. Butler/R. Butler/R. Butler]