Naganuma (Pleistocene of Japan)

Also known as Naganuma-cho

Where: Japan (35.4° N, 139.5° E: paleocoordinates 35.6° N, 139.3° E)

• coordinate estimated from map

When: Sanuki Formation, Calabrian (1.8 - 0.8 Ma)

• Calabrian

Environment/lithology: marine; unlithified conglomerate

• gravel

Size class: macrofossils

Preservation: original phosphate

Primary reference: H. Matsumoto. 1937. A new species of orc from the basal Calabrian at Naganuma, Minato Town, Province of Kazusa, Japan. Zoological Magazine 49(8):191-193 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 51304: authorized by Mark Uhen, entered by Mark Uhen on 02.06.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Odontaspidida - Carcharodontidae
"Isurus hastalis" = Cosmopolitodus hastalis
"Isurus hastalis" = Cosmopolitodus hastalis Agassiz 1843 elasmobranch
 Lamniformes - Lamnidae
Carcharodon carcharias Linnaeus 1758 great white shark
Mammalia
 Proboscidea - Elephantidae
"Parelephas protomammonteus" = Mammuthus
"Parelephas protomammonteus" = Mammuthus mammoth
subspecies typicus
 Ungulata - Giraffidae
Giraffa nipponica giraffe
Orasius?
 Ungulata - Cervidae
Cervus kazusensis deer
cfr. Sika
 Cetacea - Delphinidae
"Orca paleorca n. sp." = Orcinus paleorca
"Orca paleorca n. sp." = Orcinus paleorca Matsumoto 1937 killer whale