18
proceedings of the national museum
vol. 76
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| Tuzoia praemorsa, new species | 10 | ||
| Fig. | 2. | Valves opened out. Keel, with frill, of right valve fully extended. Outer portion of left valve crushed down almost vertically. Fragment of soft body of some undetermined form at rear. Paratype, Cat. No. 80488, U.S.N.M.
Middle Cambrian, Burgess shale; (loc. 35k) near Field, British Columbia.
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| Tuzoia getzi, new species | 10 | ||
| 3. | Dorsal view of opened valves. Seven spines along dorsal line well shown. Impression of interior, beyond keel, of left valve shown near bottom of picture. Keels with frills flattened out. Holotype, Peabody Museum, Yale University, No. 10044.
Lower Cambrian, Kinzers formation; (loc. 12x), near Rohrerstown, Pennsylvania.
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U. S. GOVERNMENT PRINTING OFFICE : 1929
