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Weight: 227 g

Garland R. Upchurch, Jr., Peter R. Crane, and Andrew N. Drinnan

The mid-Cretaceous Potomac Group of Virginia and Maryland preserves the best record of early flowering plant fossils in North America. The Potomac Group documents some of the earliest appearances of modern orders and families and illustrates the transition from an archaic Mesophytic flora dominated by ferns, cyadophytes, and conifers to a modern Cenophytic flora dominated by flowering plants and conifers.
This volume formally describes a mid-Cretaceous (Upper Albian) megaflora from the Quantico locality in Virginia. The Quantico flora contains horsetails, cycadophytes, conifers, and flowering plants that belong to a mixture of extinct and extant families. Three new species are described in this publication.

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