Smithsonian miscellaneous collections . ygidium. U. S. National Museum, Catalogue No. (X4-) Hypostoma associated with this species. U. S. Na-tional Museum, Catalogue No. 62772. The specimens represented by figs. 2, 2a-c are compressed in a fineargillaceous shale at locality 4g, Middle Cambrian: Wolsey shale;5 miles east-northeast of Logan, Gallatin County, Montana. Corynexochus (Bonnia) busa Walcott (see pi. 57, fig. la) 326 Figs. 3,3. (X 3-) Top and side views of a broken cranidium thatretains its convexity. U. S. National Museum, CatalogueNo. 62773.^a, 3a. (X4-) Top and side views
Smithsonian miscellaneous collections . ygidium. U. S. National Museum, Catalogue No. (X4-) Hypostoma associated with this species. U. S. Na-tional Museum, Catalogue No. 62772. The specimens represented by figs. 2, 2a-c are compressed in a fineargillaceous shale at locality 4g, Middle Cambrian: Wolsey shale;5 miles east-northeast of Logan, Gallatin County, Montana. Corynexochus (Bonnia) busa Walcott (see pi. 57, fig. la) 326 Figs. 3,3. (X 3-) Top and side views of a broken cranidium thatretains its convexity. U. S. National Museum, CatalogueNo. 62773.^a, 3a. (X4-) Top and side views of a small, finely preservedpygidium. U. S. National Museum, Catalogue No. (X 10.) Surface .of axial lobe of pygidium of specimen repre-sented by fig. (X8.) Surface of glabella of specimen represented by fig. 3. The specimens represented by figs. 6, 6a-c occur in a compact graylimestone at locality 2 o, Lower Cambrian: Bic Harbor, Provinceof Quebec, Canada. SMITHSONIAN MISCEl 1 ANEOUS COLLECTIONS VOL. 64, NO. 5. PL. 60. c::??
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Keywords: ., bookcentury1800, bookdecade1860, bookidsmiths, booksubjectscience
