Amagimi dam, pterosaur: Late Cenomanian - Early Turonian, Japan
collected 1996

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Osteichthyes - Pterosauria - Azhdarchidae
1 specimen
MDM 349, cervical vertebra
see common names

Geography
Country:Japan State/province:Kumamoto County:Kamimashikigun
Coordinates: 32.8° North, 130.9° East (view map)
Paleocoordinates:37.8° North, 136.4° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Cenomanian - Turonian 10 m.y. bin: Cretaceous 5 - Cretaceous 6
Key time interval: Late Cenomanian - Early Turonian
Age range of interval: 100.5 - 89.8 m.y. ago
Stratigraphy
Geological group:Mifune Formation:"Upper"
Stratigraphic resolution:bed
Stratigraphy comments: "Upper" Formation dated primarily on the indirect basis of biostratigraphic ages for overlying and underlying formations
Lithology and environment
Primary lithology:coarse muddy sandstone
Includes fossils?Y
Lithology description: "coarse sandstone bed, about 30 cm thick and with muddy patches"
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:medium
Fragmentation:occasional
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Collection dates:1996
Collection method comments: MDM: Mifune Dinosaur Museum
Taxonomic list comments:dinosaurs, crocodiles, turtles, fishes and mammals are reported to be known from the same locality and/or other sites from the same horizon, but no details are given.
Metadata
Database number:93995
Authorizer:R. Butler Enterer:R. Butler
Research group:vertebrate
Created:2010-02-08 00:27:03 Last modified:2025-02-22 15:12:02
Access level:the public Released:2010-02-08 00:27:03
Creative Commons license:CC0
Reference information

Primary reference:
31943. N. Ikegami, A. W. A. Kellner, and Y. Tomida. 2000. The presence of an azhdarchid pterosaur in the Cretaceous of Japan. Paleontological Research 4(3):165-170 [R. Butler/R. Butler/R. Butler]