Arashima, Toba city: Valanginian - Barremian, Japan
collected 1996-1998

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Osteichthyes
1 individual
Mie Prefectural Museum Fo-0014
Barrett et al. 2002
Tomida and Tsumura 2006
"fam., gen. et sp. indet."
Mannion et al. 2013
"Toba dinosaur"
Osteichthyes - Iguanodontidae
Tomida and Tsumura 2006 2 specimens
"Iguanodon-like"
Osteichthyes - Amiiformes - Caturidae
Caturus tenuidens Woodward 1895
1 specimen
Chondrichthyes - Hybodontiformes - Hybodontidae
Heteroptychodus sp. Yabe and Obata 1930
Tanimoto and Tanaka 1998 1 specimen
see common names

Geography
Country:Japan State/province:Mie
Coordinates: 34.5° North, 136.9° East (view map)
Paleocoordinates:45.8° North, 143.7° East (Wright 2013)
Basis of coordinate:based on nearby landmark
Altitude:0 meters
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Early Cretaceous
Stage: Valanginian - Barremian 10 m.y. bin: Cretaceous 1 - Cretaceous 2
Key time interval: Valanginian - Barremian
Age range of interval: 137.05 - 121.4 m.y. ago
Stratigraphy
Geological group:Matsuo Formation:Kamo
Stratigraphic resolution:group of beds
Stratigraphy comments: "lower formation" of the Matsuo group, called the "Kamo belt"
Lithology and environment
Primary lithology: argillaceous sandstone
Secondary lithology:black siltstone
Includes fossils?Y
Lithology description: "lower muddy sandstone"
Environment:estuary/bay
Geology comments: "bay environment"
Taphonomy
Modes of preservation:body,mold/impression,trace
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:good
Associated major elements:some
Disassociated major elements:some
Disassociated minor elements:some
Fragmentation:frequent
Spatial resolution:allochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (float),surface (in situ),mechanical,field collection,observed (not collected)
Reason for describing collection:taxonomic analysis
Collection dates:1996-1998
Collection method comments: excavation by Dinosaur Research Group of Mie Prefecture organized by the Mie Pref. Museum; amateur collecting in 1998
Metadata
Database number:52343
Authorizer:M. Carrano, P. Mannion Enterer:M. Carrano, P. Mannion
Modifier:M. Carrano Research group:vertebrate
Created:2005-08-03 13:19:48 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-08-03 13:19:48
Creative Commons license:CC0
Reference information

Primary reference:
14079.ETE M. Tanimoto. 1998. New find of a sauropod fossil from the Lower Cretaceous Matsuo Group of Toba, Mie Prefecture, southwest Japan. In S. G. Lucas, J. I. Kirkland, and J. W. Estep (eds.), Lower and Middle Cretaceous Terrestrial Ecosystems, New Mexico Museum of Natural History and Science Bulletin 14:201-204 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

19215ETE P. M. Barrett, Y. Hasegawa, M. Manabe, S. Isaji, and H. Matsuoka. 2002. Sauropod dinosaurs from the Lower Cretaceous of eastern Asia: taxonomic and biogeographical implications. Palaeontology 45(6):1197-1217 [M. Carrano/M. Carrano]
55479 Fukui Kenritsu Kyoryu Hakubutsukan. 2010. [Exhibit Guidebook of the Fukui Prefectural Dinosaur Museum]. 1-212 [M. Carrano/M. Carrano]
46153 P. D. Mannion, P. Upchurch, R. N. Barnes and O. Mateus. 2013. Osteology of the Late Jurassic Portuguese sauropod dinosaur Lusotitan atalaiensis (Macronaria) and the evolutionary history of basal titanosauriforms. Zoological Journal of the Linnean Society 168:98-206 [P. Mannion/P. Mannion/P. Mannion]
41006 H. Saegusa and Y. Tomida. 2011. Titanosauriform teeth from the Cretaceous of Japan. Anais da Academia Brasileira de Ciências 83(1):247-265 [M. Carrano/M. Carrano]
38260 M. Tanimoto, A. Kaneko, M. Takata and T. Fujimoto. 1997. [A sauropod fossil from the Lower Cretaceous Matsuo Group of Toba, Mie Prefecture, southwest Japan and its significance on the classification]. 1997 Annual Meeting, The Palaeontological Society of Japan, Kyoto. Abstracts with Programs 34 [M. Carrano/M. Carrano]
38259 M. Tanimoto and S. Tanaka. 1998. [Heteroptychodus sp. (Chondrichthyes) from the Lower Cretaceou Matsuo Group of Arashima, Toba City, Mie Prefecture, southwest Japan]. Chigakukenkyu 47(1):37-40 [M. Carrano/M. Carrano/M. Carrano]
18726ETE Y. Tomida and Y. Tsumura. 2006. A partial skeleton of titanosaurian sauropod from the Early Cretaceous of Toba City, central Japan. Journal of the Paleontological Society of Korea 22(1):217-238 [M. Carrano/M. Carrano]