Cedaria
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- Ediacaran–Ordovician of East Laurentia— S
- Cambrian Stratigraphy of the Wendover Area, Utah and Nevada
- A Restudy of the Late Cambrian Molluscan Fauna of Berkey (1898) from Taylors Falls, Minnesota
- Redalyc.Review of the Cambrian Stratigraphy of the Argentine
- Ohio Trilobites
- The Paleozoic Era: Diversification of Plant and Animal Life 7
- The Geology of the Milton Quadrangle, Vermont
- Fabulous Fossils— 300 Years of Worldwide Research on Trilobites
- The Correlation of the Upper Cambrian Sections of Missouri and Texas with the Section in the Upper Mississippi Valley
- Paleobiology of Climactichnites, *§5* an Enigmatic Late Cambrian Fossil
- Fossils from the Late Middle Cambrian Bolaspidella Zo\E
- Palaeozoic), South Australia
- February 2019
- Klassifikation Der Trilobiten Abstract & Vorwort 1
- The Geology of Southern House Range, Millard County, Utah
- United States Department of the Interior Geological Survey Short Papers For
- Mattheva, a Proposed New Class of Mollusks
- To Named Or Illustrated Trilobites 484