are megalithic
tomb
A tomb ( grc-gre, τύμβος ''tumbos'') is a repository for the remains of the dead. It is generally any structurally enclosed interment space or burial chamber, of varying sizes. Placing a corpse into a tomb can be called ''immureme ...
s or
tumuli in
Northeast Asia. ''Kofun'' were mainly constructed in the
Japanese archipelago between the middle of the 3rd century to the early 7th century CE.
[岡田裕之「前方後円墳」『日本古代史大辞典』大和書房、2006年。]
The term is the origin of the name of the
Kofun period, which indicates the middle 3rd century to early–middle 6th century. Many ''kofun'' have distinctive keyhole-shaped mounds (). The
Mozu-
Furuichi kofungun or tumulus clusters were inscribed on the
UNESCO World Heritage List in 2019, while
Ishibutai Kofun is one of a number in
Asuka-Fujiwara residing on the