William R. Hammer

Osteology of Cryolophosaurus ellioti (Dinosauria: Theropoda) from the Early Jurassic of Antarctica and implications for early theropod evolution

Nathan D. Smith, Peter J. Makovicky, William R. Hammer et al. · Zoological Journal of the Linnean Society · 2007 · 182 citations · Full text

Natural Sciences, Anatomy, Zoology +14

A Crested Theropod Dinosaur from Antarctica

William R. Hammer, William J. Hickerson · Science · 1994 · 118 citations

Natural Sciences, Paleontology, Zoology +16

Permian-Triassic boundary in the central Transantarctic Mountains, Antarctica

James W. Collinson, William R. Hammer, Rosemary A. Askin et al. · Geological Society of America Bulletin · 2006 · 100 citations

Natural Sciences, Earth Sciences, Geology +6

The Pangaean reptile, Lystrosaurus maccaigi, in the Lower Triassic of Antarctica

John W. Cosgriff, William R. Hammer, William J. Ryan · Journal of Paleontology · 1982 · 50 citations

Natural Sciences, Paleontology, Zoology +6

New Therapsids From the Upper Fremouw Formation (Triassic) of Antarctica

William R. Hammer · Journal of Vertebrate Paleontology · 1995 · 45 citations

Natural Sciences, Paleontology, Zoology +7