Smithsonian miscellaneous collections . BATHYURISCUS NO. 5 CAMBRIAN TRILOBITES 4I7 Bathyuriscus adccus Walcott—Continued. page 3f. (X2.) Thoracic segments. U. S. National ]\Iuseum, Cata-logue No. 62634. The specimens represented hy figs. 3, ^a-c are from locality 58J,Middle Cambrian: Stephen formation about 1,900 feet (579 m.)above the Lower Cambrian and 3,100 feet (945 m.) below the UpperCambrian, near the base of the limestone forming 2 of the Stephenformation, on the east side of Mount Stephen about 3,000 feet (914m.) above the Canadian Pacific Railway track (north of the tunnel),3 miles (4
Smithsonian miscellaneous collections . BATHYURISCUS NO. 5 CAMBRIAN TRILOBITES 4I7 Bathyuriscus adccus Walcott—Continued. page 3f. (X2.) Thoracic segments. U. S. National ]\Iuseum, Cata-logue No. 62634. The specimens represented hy figs. 3, ^a-c are from locality 58J,Middle Cambrian: Stephen formation about 1,900 feet (579 m.)above the Lower Cambrian and 3,100 feet (945 m.) below the UpperCambrian, near the base of the limestone forming 2 of the Stephenformation, on the east side of Mount Stephen about 3,000 feet (914m.) above the Canadian Pacific Railway track (north of the tunnel),3 miles ( km.) east of Field, British Columbia, Canada. Bathyuriscus ? bithus Walcott . 340 Fig. 4. (Natural size.) Cranidium somewhat crushed in the argil-laceous shale. U. S. National Museum, Catalogue (Natural size.) Fragment of a large pygidium. U. S. NationalMuseum, Catalogue No. 62636. The specimens represented by figs. 4 and 4a are from locality 55c,jMiddle Cambrian: Spence shale member of the Ute formation;about 50 feet
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Keywords: ., bookcentury1800, bookdecade1860, bookidsmiths, booksubjectscience
