Aw14, Mitsugawa: Early/Lower Maastrichtian, Japan
collected by S. Kishimoto 2004

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Angiospermae - Rosales - Ulmaceae
Ulmus sp. Linnaeus 1753
Kobayashi et al. 2021
Angiospermae - Proteales - Platanaceae
Platanus sp. Linnaeus 1753
Kobayashi et al. 2021
unclassified
Zamiophyllum sp. Nathorst 1890
Kobayashi et al. 2021
Reptilia - Hesperornithiformes
Hesperornithiformes indet. Fürbringer 1888
Tanaka et al. 2020 1 individual
MNHAH D1-048531
Reptilia - Hadrosauridae
Lambeosaurinae indet. Parks 1923
Suzuki et al. 2005 1 individual
MNHAH D1-033516 - holotype
    = Yamatosaurus izanagii n. gen., n. sp. Kobayashi et al. 2021
Kobayashi et al. 2021
Reptilia - Testudines - Dermochelyidae
Mesodermochelys undulatus Hirayama and Chitoku 1996
Kobayashi et al. 2021
Gastropoda - Gigantocapulidae
Anisomyon problematicus (Nagao and Otatume 1938)
recombined as Gigantocapulus problematicus
Bivalvia - Myalinida - Inoceramidae
Inoceramus (Endocostea) shikotanensis Nagao and Matsumoto 1940
Cephalopoda - Nautilida - Nautilidae
Eutrephoceras sp. Hyatt 1894
Cephalopoda - Ammonitida - Nostoceratidae
Nostoceras hetonaiense Matsumoto 1977
see common names

Geography
Country:Japan State/province:Hyogo
Coordinates: 34.3° North, 134.9° East (view map)
Paleocoordinates:42.5° North, 123.8° East
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Early/Lower Maastrichtian Ammonoid zone: Nostoceras hetonaiense
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphy
Geological group:Izumi Formation:Kita-ama
Stratigraphic resolution:bed
Stratigraphy comments: upper part of formation
Lithology and environment
Primary lithology:gray lithified mudstone
Includes fossils?Y
Environment:marine indet.
Taphonomy
Modes of preservation:body,mold/impression,adpression
Size of fossils:macrofossils
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:salvage,selective quarrying,surface (float),surface (in situ),field collection,survey of museum collection
Reason for describing collection:taxonomic analysis
Collectors:S. Kishimoto Collection dates:May 2004
Collection method comments: Repository: Osaka Museum of Natural History
Metadata
Also known as:Sumoto, Morozumi
Database number:176812
Authorizer:M. Clapham, P. Mannion, M. Carrano Enterer:M. Clapham, P. Mannion, M. Carrano
Modifier:M. Carrano Research group:marine invertebrate
Created:2016-03-03 01:23:21 Last modified:2021-05-28 20:02:33
Access level:the public Released:2016-03-03 01:23:21
Creative Commons license:CC BY
Reference information

Primary reference:
58337. Y. Morozumi. 1985. Late Cretaceous (Campanian and Maastrichtian) ammonites from Awaji Island, southwest Japan. Bulletin of the Osaka Museum of Natural History 39:1-58 [M. Clapham/M. Clapham]

Secondary references:

76677 Y. Kobayashi, R. Takasaki, K. Kubota and A. R. Fiorillo. 2021. A new basal hadrosaurid (Dinosauria: Ornithischia) from the latest Cretaceous Kita-ama Formation in Japan implies the origin of hadrosaurids. Scientific Reports 11:8547:1-15 [P. Mannion/P. Mannion]
14805ETE D. Suzuki, H. Saegusa, and H. Furutani. 2005. Newly found hadrosaurid fossil co-producing broadleaf fossils from Sumoto, west central Japan. Journal of Vertebrate Paleontology 25(3, suppl.):120A [M. Carrano/M. Carrano]
72206fossil record T. Tanaka, Y. Kobayashi, K. Ikuno, T. Ikeda, and H. Saegusa. 2020. A marine hesperornithiform (Avialae: Ornithuromorpha) from the Maastrichtian of Japan: Implications for the paleoecological diversity of the earliest diving birds in the end of the Cretaceous. Cretaceous Research 113:104492 [A. Lin/A. Lin/P. Mannion]