Palaeozoic Arachnida of Illinois
Subtitle: an inquiry into their evolutionary trends
By: by Alexander Petrunkevitch
Series: Illinois. [State Museum] Scientific papers -- vol. III, no. 2; Scientific papers (Illinois State Museum) -- vol. III, no. 2.
Published: 1945
Place of publication: Springfield, Ill
Language: eng
Number of pages: 72
Subjects: Arachnida; Paleontology
Notes: Includes bibliographical references (p. 70-72).