Palmer, A. R. (1954). An Appraisal of the Great Basin Middle Cambrian trilobites described before 1900: Of the 29 species described prior to 1900, 27 are redescribed and 29 refigured, and a new name is proposed for I species. U.S. Government Print. Office.
Chicago-Zitierstil (17. Ausg.)Palmer, Allison R. An Appraisal of the Great Basin Middle Cambrian Trilobites Described Before 1900: Of the 29 Species Described Prior to 1900, 27 Are Redescribed and 29 Refigured, and a New Name Is Proposed for I Species. Washington, DC: U.S. Government Print. Office, 1954.
MLA-Zitierstil (9. Ausg.)Palmer, Allison R. An Appraisal of the Great Basin Middle Cambrian Trilobites Described Before 1900: Of the 29 Species Described Prior to 1900, 27 Are Redescribed and 29 Refigured, and a New Name Is Proposed for I Species. U.S. Government Print. Office, 1954.