Taxa included

Leech, R. E. & Matthews Jr., J. V. (1971). Xysticus archaeopalpus (Arachnida: Thomisidae), a new species of crab spider from Pliocene sediments in western Alaska. The Canadian Entomologist 103(9): 1337-1340. doi: 10.4039/Ent1031337-9

Taxon
Xysticus britcheri Gertsch, 1934 (Thomisidae) 1337, f. 4-5 (m), Xysticus britcheri

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