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.
247 Contributions. 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.