Takes the same shape of the plant or animal. The space is sometimes filled with mud. The mud hardens and turns into rock. Cast are often made from a mold. The inside of the sedimentary rock isn't hollow.
American Bandstand, 1957. Dick Clark became host of the locally-produced Bandstand in 1956, just before the show was renamed American Bandstand, shortened to ninety minutes, and expanded to a national ABC audience on August 5, 1957.
Dave Garroway (1952 to 1961) Dave Garroway was the original host of  The Today Show in 1952. The New York native was a page at NBC, working his way up through a series of positions at television and radio stations across the country. He became known as the Roving Announcer, always able to find a story.