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Date: 2013-03-12 11:18:52 Biology Geology Geology of Pennsylvania Limestone Thrombolite Conococheague Formation Stromatolite Lake Thetis Conococheague Cyanobacteria Living fossils Trace fossils		Add to Reading List Source URL: www.vmnh.net Download Document from Source Website File Size: 3,71 MB Share Document on Facebook

	Vol. 25 No. 3 August 1979 DocID: yttk - View Document
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