Arashima, Toba city (Cretaceous to of Japan)

Where: Mie, Japan (34.5° N, 136.9° E: paleocoordinates 43.9° N, 139.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kamo Formation (Matsuo Group), Valanginian to Valanginian (139.8 - 125.0 Ma)

• "lower formation" of the Matsuo group, called the "Kamo belt"

• group of beds-level stratigraphic resolution

Environment/lithology: estuary or bay; argillaceous sandstone and black siltstone

• "bay environment"
• "lower muddy sandstone"

Size classes: macrofossils, mesofossils

Preservation: mold/impression, trace

Collected in 1996-1998

Collection methods: quarrying, surface (float), surface (in situ), mechanical,

• excavation by Dinosaur Research Group of Mie Prefecture organized by the Mie Pref. Museum; amateur collecting in 1998

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52343: authorized by Matthew Carrano, entered by Matthew Carrano on 03.08.2005, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Hybodontiformes - Hybodontidae
Heteroptychodus sp.2 Yabe and Obata 1930 elasmobranch
Actinopteri
 Amiiformes - Caturidae
Reptilia
 Saurischia -
Somphospondyli indet.1 Wilson and Sereno 1998 sauropod
Mie Prefectural Museum Fo-0014
 Neornithischia - Iguanodontidae
Iguanodontidae indet.3 Bonaparte 1850 iguanodontid
"Iguanodon-like"