All around US

Some quarters insist we see the Americas as one block and this seems reasonable until you realise that that there is an isthmus between Africa and Eurasia and no one is suggesting a supercontinent (indeed Europe and Asia are more often seen as discrete).

But even North America has the kind of definitional indeterminants that we find in Sahul  and surrounds, with some identifying it as the US and Canada alone, others adding Mexico.

 North America


Anguilla
Antigua and Barbuda
Aruba
Bahamas
Barbados
Belize
Bermuda
British Virgin Islands
Canada
Cayman Islands
Clipperton Island
Costa Rica
Cuba
Dominica
Dominican Republic
El Salvador
Greenland
Grenada
Guadeloupe
Haiti
Honduras
Isla Aves
Jamaica
Martinique
Mexico
Montserrat
Navassa Island
Netherlands Antilles
Nicaragua
Panama
Puerto Rico
Saint Barthélemy
Saint Kitts and Nevis
Saint Lucia
Saint Martin
Saint Pierre and Miquelon
Saint Vincent and the Grenadines
San Andrés y Providencia
Trinidad and Tobago
Turks and Caicos Islands
United States
United States Virgin Islands

(Central America and the Caribbean and Latin America are regions, not continental designations)