Petrunkevitch, Alexander, 1949, A study of Palaeozoic Arachnida

Petrunkevitch, Alexander, 1949, A study of Palaeozoic Arachnida, Transactions of the Connecticut Academy of Arts and Sciences 37, pp. 69-315

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urn:lsid:zoobank.org:pub:0A24E194CBB743A2B26AD117335C485B

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