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.
American Bandstand started as a local Philadelphia, Pennsylvania, USA show known only as Bandstand. As the Philadelphia area (only) show, it was hosted by Bob Horn from 1952 uâ¦ntil mid 1956, when Mr. Horn was discharged. Tony Mammarella, the show's producer, temporarily filled in as host until they signed Dick Clark. Through the personal efforts of Dick Clark, the Network was persuaded to air the show nationally. The show was renamed from Bandstand to American Bandstand in 1957, coincident with it becoming a nationally broadcast program. Dick Clark was the host at that time (1957) and remained the host until early 1989. The last six months of the show's long run was hosted by David Hirsch.