Interestingly depending on the underlying genetic abnormality the anterior-posterior gradient of heterotopia is variable: 1  anterior predilection suggests mutations of DCX. 2  posterior predilection suggests mutations of LIS1.
Sibley, North Dakota. Sibley is a city in Barnes County, North Dakota, United States. The population was 30 at the 2010 census. Sibley was founded in 1959.
General Sibley Park. General Sibley Park is located around 4 miles (6 km) south of North Dakota state capital Bismarck. Opened in 1967, it stands on a piece of land closely associated with North Dakota's history and settlement and is named after General Henry Sibley.