Middle Cambrian branchiopoda, malacostraca, trilobita, and merostomata
By: by Charles D. Walcott.
Series: Smithsonian miscellaneous collections -- v. 57, no. 6
Publisher: Smithsonian Institution
Published: 1912
Place of publication: Washington
Language: eng
Number of pages: 228
Subjects: Branchiopoda, Fossil.; Paleontology -- Cambrian.; Malacostraca, Fossil.; Trilobites.; Merostomata.