Amakusa Island, Himenoura Group, Kyushu (Cretaceous of Japan)

Where: Kumamoto, Japan (32.5° N, 130.0° E: paleocoordinates 41.5° N, 120.9° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Himenoura Group, Santonian (86.3 - 83.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; siliciclastic sediments

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: I. Hayami. 1975. A systematic survey of the Mesozoic Bivalvia from Japan. The University Museum, The University of Tokyo, Bulletin (10) [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 39567: authorized by Martin Aberhan, entered by Sabine Nürnberg on 31.05.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Glycymerididae
"Glycymeris (Glycymerita) amakusensis" = Glycymerita, "Glycymeris (Glycymerita) himenourensis" = Glycymerita
"Glycymeris (Glycymerita) amakusensis" = Glycymerita clam
"Glycymeris (Glycymerita) himenourensis" = Glycymerita clam
 Myalinida - Inoceramidae
"Inoceramus (Sphenoceramus) orientalis" = Sphenoceramus orientalis, Inoceramus (Sphenoceramus) naumanni, Inoceramus (Inoceramus) amakusensis, "Inoceramus (Cataceramus) japonicus" = Cataceramus
"Inoceramus (Sphenoceramus) orientalis" = Sphenoceramus orientalis Sokolov 1914 clam
subsp. nagoi
Inoceramus (Inoceramus) amakusensis Nagao and Matsumoto 1940 clam
"Inoceramus (Cataceramus) japonicus" = Cataceramus clam
 Lucinida - Lucinidae
? Lucina sp. Bruguière 1797 clam
 Carditida - Astartidae
 Trigoniida - Trigoniidae
"Apiotrigonia (Heterotrigonia) granosa" = Megatrigonia (Apiotrigonia), "Apiotrigonia (Heterotrigonia) himenourensis" = Megatrigonia (Apiotrigonia), Apiotrigonia (Apiotrigonia) minor, Apiotrigonia (Apiotrigonia) obliquecostata
"Apiotrigonia (Heterotrigonia) granosa" = Megatrigonia (Apiotrigonia) clam
"Apiotrigonia (Heterotrigonia) himenourensis" = Megatrigonia (Apiotrigonia) clam
Santonian or Campanian
 Nuculida - Nuculidae
"Nucula (Leionucula) formosa" = Leionucula
"Nucula (Leionucula) formosa" = Leionucula nut clam