Vol. s3-46, Issue 272, 1893August 01, 1893 EDT
Larval Forms of Trilobites From the Lower Helderberg Group
Larval Forms of Trilobites From the Lower Helderberg Group
Charles Emerson Beecher,
Beecher, C. E. (1893). Larval forms of trilobites from the lower Helderberg group. American Journal of Science, s3-46(272), 142–147. https://doi.org/10.2475/ajs.s3-46.272.142