Yochelson, Ellis Leon 1928-2006
The early Cambrian fossil Salterella Conulata clark in eastern north America / by Ellis L. Yochelson. -- Washington : United States Government Printing Office, 1970 - 10 p., [6] h. de lam. -- (Geological Survey Professional Paper ; 683-B).
Cámbrico
Estados Unidos
Estratigrafía
551.732(73)
The early Cambrian fossil Salterella Conulata clark in eastern north America / by Ellis L. Yochelson. -- Washington : United States Government Printing Office, 1970 - 10 p., [6] h. de lam. -- (Geological Survey Professional Paper ; 683-B).
Cámbrico
Estados Unidos
Estratigrafía
551.732(73)