Authors(s) | Shimer, H. W. |
Year | 1907 |
Title | A Lower Middle Cambrian Transition Fauna from Brain tree. Amer. J. Sci. New Haven Conn. Mass. 174 (ser 4, 24) |
Authors(s) | Shimer, H. W. |
Year | 1907 |
Title | A Lower Middle Cambrian Transition Fauna from Brain tree. Amer. J. Sci. New Haven Conn. Mass. 174 (ser 4, 24) |