BULL. GEOL. SOC. AM. 



VOL. 27, 1915, PL. 29 



Figure 1. — Pseudomonotis suecieculaeis (Gabb) 

 Right valve from Upper Triassic limestone and shale of Cold Bay, Alaska Peninsula (3107) 



Figure 2. — Halobia sp. cf. Halobia superba Mojsisovics 



From Upper Triassic shaly limestone about 100 feet above base of section on page 701. South 

 bank of Yukon River, one mile above Nation River (8897) 



TRIASSIC FOSSILS FROM ALASKA 



