Concepedia

Gregory A. Schumacher

GA

5

Publications

80

Citations

5

H-Index

1984

Active since

Affiliations

United States Geological Survey(Current)

Ohio Department of Natural Resources

Gregory A. Schumacher is an author at United States Geological Survey specializing in natural sciences, evolutionary biology, and biology.

Top concepts

BiologyNatural SciencesEvolutionary BiologySymbiosisPhylogeneticsBotanyGeologyTectonicsCladisticsEngineering

Publications per year

1984–2010

5

Publications

5

Paleoecology of commensal epizoans fouling<i>Flexicalymene</i>(Trilobita) from the Upper Ordovician, Cincinnati Arch region, USA

Marcus M. Key, Gregory A. Schumacher, Loren E. Babcock et al. · Journal of Paleontology · 2010 · 25 citations

CHEIROCYSTIS FULTONENSIS, A NEW GLYPTOCYSTITOID RHOMBIFERAN FROM THE UPPER ORDOVICIAN OF THE CINCINNATI ARCH—COMMENTS ON CHEIROCRINID ONTOGENY

Colin D. Sumrall, Gregory A. Schumacher · Journal of Paleontology · 2002 · 18 citations

Biology, Morphological Evidence, Phylogenetics +9

New Lower Silurian rhombiferan cystoid (Echinodermata, Callocystitidae) from southwestern Ohio

William I. Ausich, Gregory A. Schumacher · Journal of Paleontology · 1984 · 15 citations

Biology, Myriapoda, Arthropod Taxonomy +15

Discovery of microscopic evidence for shock metamorphism at the Serpent Mound structure, south-central Ohio: confirmation of an origin by impact

Richard W. Carlton, Christian Koeberl, Mark T. Baranoski et al. · Earth and Planetary Science Letters · 1998 · 12 citations

Biology, Serpent Mound Structure, Microscopic Evidence +11

Lithostratigraphy of the Grant Lake Limestone and Grant Lake Formation (Upper Ordovician) in Southwestern Ohio

Gregory A. Schumacher, Echo Swinford, Douglas L. Shrake · 1991 · 10 citations · Full text

Rows per page

1–5 of 5