Vol. s4-24, Issue 140, 1907August 01, 1907 EDT
A Lower-Middle Cambrian Transition Fauna From Braintree, Massachusetts
A Lower-Middle Cambrian Transition Fauna From Braintree, Massachusetts
Hervey Woodburn Shimer,
Shimer, H. W. (1907). A lower-middle Cambrian transition fauna from Braintree, Massachusetts. American Journal of Science, s4-24(140), 176–178. https://doi.org/10.2475/ajs.s4-24.140.176