Middle Cambrian Branchiopoda, Malacostraca, Trilobita, and Merostomata CD Walcott Smithsonian Institution 57, 145-228, 1912 | 1190* | 1912 |
Cambrian faunas of China CD Walcott | 399* | 1905 |
Second contribution to the studies on the Cambrian faunas of North America CD Walcott US Government Printing Office, 1886 | 399 | 1886 |
Pre-Cambrian fossiliferous formations CD Walcott Bulletin of the Geological Society of America 10 (1), 199-244, 1899 | 335 | 1899 |
Cambrian Brachiopoda with descriptions of new genera and species CD Walcott US Government Printing Office, 1905 | 333* | 1905 |
The fauna of the Lower Cambrian or Olenellus zone CD Walcott US Government Printing Office, 1890 | 297 | 1890 |
Middle Cambrian annelids. Cambrian geology and paleontology, II CD Walcott Smithsonian Miscellaneous Collections 57, 109-144, 1911 | 224 | 1911 |
Paleontology of the Eureka district CD Walcott US Government Printing Office, 1884 | 211 | 1884 |
Pre-cambrian algonkian algal flora CD Walcott Smithsonian Miscellaneous Collections, 1914 | 167 | 1914 |
Research in China... B Willis, E Blackwelder, RH Sargent, F Hirth, CD Walcott, S Weller, ... Carnegie institution of Washington, 1913 | 158 | 1913 |
Middle Cambrian Spongiae CD Walcott Smithsonian Miscellaneous Collections, 1917 | 142 | 1917 |
Cambrian and Ozarkian trilobites CD Walcott Smithsonian Miscellaneous Collections, 1923 | 134 | 1923 |
Cambrian geology and paleontology: Middle Cambrian Spongia CD Walcott Smithsonian Institution, 1920 | 125 | 1920 |
Addenda to descriptions of Burgess shale fossils (with 23 plates) CD Walcott, CE Resser Smithsonian Miscellaneous Collections, 1931 | 121 | 1931 |
Preliminary notes on the discovery of a vertebrate fauna in Silurian (Ordovician) strata CD Walcott Bulletin of the geological Society of America 3 (1), 153-172, 1892 | 101 | 1892 |
Middle Cambrian algae CD Walcott (No Title), 1919 | 100* | 1919 |
Olenellus and Other Genera of the Mesonacidae... CD Walcott Smithsonian Institution 1 (6), 1910 | 88 | 1910 |
Descriptive notes of new genera and species from the Lower Cambrian or Olenellus zone of North America CD Walcott Proceedings of the United States National Museum, 1890 | 85 | 1890 |
Study of a line of displacement in the Grand Caņon of the Colorado, in northern Arizona CD Walcott Geological Society of America, 1890 | 81 | 1890 |
Cambrian Geology and Paleontology II: No. 3--Middle Cambrian Holothurians and Medusae CD Walcott | 66 | 1911 |