Pennsylvanian invertebrates of the Mazon Creek area, Illinois. Eurypterida
Published in Fieldiana Geology, in 1963, in volume 12, issue 6, pages 85-106
Date published:1963-09-17
Published in Fieldiana Geology, in 1963, in volume 12, issue 6, pages 85-106
Date published:1963-09-17