Tiktaalik is a transitional fossil; it is to tetrapods what Archaeopteryx is to birds, troodonts and dromaeosaurids. 1  While it may be that neither is ancestor to any living animal, they serve as evidence that intermediates between very different types of vertebrates did once exist.
Minnesota became a part of the United States as the Minnesota Territory in 1849, and became the 32nd U.S. state on May 11, 1858.
The Student Union Building was rededicated later in 1956 as Constitution Hall in honor of the document created there. Congress ratified the state constitution in 1958. President Eisenhower signed it Jan. 3, 1959, and Alaska was admitted as the 49th state in the union.