sentence1: Fossils commonly found in the St. Louis include the bryozoan corals `` Lithostrotion '' and `` Lithostrotionella '' and the rugosan `` Fenestrellina '' .
sentence2: Fossils frequently found in St. Louis include the rugosan corals '' Lithostrotion `` and '' Lithostrotionella `` and the Bryozoan '' Fenestrellina `` .