Research on the Colorado Plateau Holocene climatic variation in southern Alaska Fire history of coastal California Paleoecology of the Sierra Nevada Pleistocene pluvial lakes of the Great Basin Fire history of the southern Rocky Mountains Natural history of San Clemente de Térapa, Sonora, Mexico Midriff Islands of the Sea of Cortés—Land of the Seri Fire and Vegetation History of the Spanish Sierra Nevada Climate and fire history of the Southern Andes of Argentina Will Downs translations of Chinese paleontology Evolution of North American mountain goats and bighorn sheep in China and North America Modern and fossil lizards of Australia
Research on the Colorado Plateau
Pleistocene pluvial lakes of the Great Basin
Natural history of San Clemente de Térapa, Sonora, Mexico
Midriff Islands of the Sea of Cortés—Land of the Seri
Fire and Vegetation History of the Spanish Sierra Nevada
Evolution of North American mountain goats and bighorn sheep in China and North America