http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f6-subject=Paleontology -- North America) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f6-subject%3DPaleontology%20--%20North%20America Results for your query: docsPerPage=100;f6-subject=Paleontology -- North America Thu, 01 Jan 1970 12:00:00 GMT List of palµozoic fossil insects of the United States and Canada: alphabetically arranged, giving names of authors, geological age ... with references to the principal bibliography of the subject. A paper read before the Wyoming historical and geological society, April 6, 1883. Lacoe, Ralph Dupuy, 1824-1901 https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT Shelled invertebrates of the past and present: with chapters on geological history. Bassler, Ray S. (Ray Smith), b. 1878, Resser, Charles Elmer, 1889-, Schmitt, Waldo Lasalle, 1887-, Bartsch, Paul, 1871-1960 https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT