Oldest Knowii Terrestrial Arachnids

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Science  13 Jun 1969:
Vol. 164, Issue 3885, pp. 1276-1277
DOI: 10.1126/science.164.3885.1276


New finds of nonscorpionid arachnids in the Lower Devonian Nellenköpfchen Shale of Alken an der Mosel, Germany, give valuable iniformation on the first appearance of terrestrial arachnids.