Fluvial Channel Contemporaneous with Deposition of the Sringfield Coal Member (V) Petersburg Formation Northern Warrick County Indiana
The Ontogeny of Carboniferous Arborescent Lycopsida
A Monograph of Dolerotheca Halle, and Related Complex Permineralised Medullosan Pollen Organs
Heritage Regimes and the State
Tacitus und die Welt des Römer (The world of Tacitus dt.- Übertr. v. Helmuth Eggert.)
Preliminary Study of Spores from Carboniferous Fructifications Utilizing the Scanning Electron Microscope
The Ontogeny of Carboniferous Arborescent Sphenopsida
Studies of Paleozoic Ferns
Studies of Paleozoic Ferns
Settlement Features of a Central Mexican Landscape
Guidebook to Environments of Plant Deposition
Palynology and Paleoecology of the Waltersburg Formation, Chesterian (Upper Mississippian), of Southern Illinois