Proetus (trilobite)
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- 1515 Morzadec.Vp
- An Update of Genera and Species Described in Aw Grabau's
- Age Relations of the Middle Devonian Limestones in Ohio
- GUIDE BOOK Indiana Geologic Field Conference
- The Biostratigraphy of the Delaware Limestone (Middle Devonian) of Southwestern Ontario
- Paleontlogy 5: Speciation
- Review of Fossil Collections in Scotland Glasgow and Strathclyde Glasgow and Strathclyde
- Correlation of Geological Faunas
- University of Michigan University Library
- Calymenid and Other Ordovician Trilobites from Kentucky and Ohio
- Fabulous Fossils— 300 Years of Worldwide Research on Trilobites
- Full Text -.: Palaeontologia Polonica
- Palaeoecology of Corals and Stromatoporoids in a Late Silurian Biostrome in Estonia