A dolmen -LRB- also known as cromlech -LRB- Welsh -RRB- , anta , PERSON@1 , PERSON@2 , LOCATION@1 , quoit , and portal dolmen -RRB- is a type of single-chamber megalithic tomb , usually consisting of three or more upright stones supporting a large flat horizontal capstone -LRB- table -RRB- .

A dolmen -LRB- also known as cromlech , anta , PERSON@1 , PERSON@2 , quoit , and portal dolmen -RRB- is a type of single-chamber megalithic tomb . It usually consists of three or more upright stones -LRB- megaliths -RRB- supporting a large flat horizontal capstone -LRB- table -RRB- .
