. Maryland geological survey. CYCADOPHYT^. Cockayne, Boston. PLATE LVII. PAGE Figs. 1, 2. NiLSONiA DENSiNEEVE (Fontaine) Berry 362 1. Upper surface of large divided frond from Fredericksburg, Vir- ginia. 2. Upper surface of entire frond from Fredericksburg, Virginia. 556 MARYLAND GEOLOGICAL SURVEY. LOWER CRETACEOUS, PLATE

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