A partial skeleton of the aetosaur Stagonolepis sp. is the first tetrapod body fossil recovered from Upper Triassic strata in Canyonlands National Park. The specimen consists of a partial tooth and numerous disarticulated vertebrae, ribs, and scutes found in the Blue Mesa Member of the Petrified Forest Formation (Chinle Group) near Upheaval Dome. Stagonolepis is an index taxon of the Adamanian ...

*Reproductive Toxicology Group, National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina 27709; ^Department of Toxicology, Crop Protection Division, Ciba-Geigy, Greensboro, North Carolina; ^Comparative Medicine Clinical Research Center, Departments of Comparative Medicine and Obstetrics & Gynecology, The Bowman Gray School of Medic...

Recent collecting of vertebrate fossils in Petrifi ed Forest National Park as the result of an ongoing inventory of fossil localities has produced numerous important new specimens. These include phytosaur skulls and partial skeletons, aetosaur partial skeletons and isolated, but complete, osteoderms, as well as new dinosaur material that contributes new information to a currently poor dinosaur ...

a Zoological Society London, Institute of Zoology, Regent's Park, London NW1 4RY, UK b Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, Berkshire, SL5 7PY, UK c Department of Ecology and Evolutionary Biology and Kansas Biological Survey, University of Kansas, Lawrence, KS, USA d Laboratory of Populations, Rockefeller University, 1230 York Ave, NY, 10065, USA e Royal (Dick) S...

Travel cost and contingent valuation methods are applied to the problem of estimating the potential consumer surpltrs avai!abfe to international nature tourists from a rain forest conservation project in Madagascar. Data are derived from srrrveys of nature tourists in Madagascar and international, nature tolrrism professionals in the U.S. and Europe. Typical trip travel cost models are used to ...

The successful establishment of invasive alien species in North America is strongly associated with global trade. Invasive insects and pathogens that affect plants are regularly introduced through international trade and domestic freight shipments, but few studies have directly quantified the invasion risks caused by commercial transportation at regional or larger scales. Similarly, despite muc...

Departamento de Bioquímica, Genética e Inmunología, Facultad de Biología, Universidad de Vigo, 36310 Vigo, Spain CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal National Park Service, Yellowstone National Park, P.O. Box 168, WY 82190, USA d Liverpool School of Tropical Medicine, Pembroke Place, L3 5...

The machinery of the Big River mine is the most complete historical assemblage of in situ machinery for quartz mining in New Zealand. Excavations were carried out to mitigate the effects of reconstruction of the winding engine house. Comprehensive and extensive drainage of the original working compound between the winding engine, bath house, engineer's workshop and the upper terminal of the aer...