Gansu Province, China, Institute of Vertebrate Paleontology and Paleoanthropology expedition quarrying for Early Cretaceous birds in the Xiagou Formation

Montana, USA – microsite excavation and sediment processing, prospecting Hell Creek Formation (expedition leader)

Montana, USA – microsite excavation and sediment processing, Hell Creek Formation (expedition leader)

Wyoming, USA – quarrying limestones of the Fossil Lake member, Green River Fm, Stones & Bones class (University of Chicago)

Montana, USA – The O’Connor lab have been working a new productive microsite in the Hell Creek, looking for birds and traces of other small and rare organisms

Montana, USA – microsite sediment processing, Hell Creek Formation (expedition leader)

Dinosaur Provincial Park, Alberta, Canada – joint expedition with the University of Alberta, centennial celebration of Elmer Riggs 1922 fieldwork

Utah, University of Minnesota – Field Museum joint expedition prospecting and quarrying in the Cretaceous Cedar Mountain Formation

Romania, American Museum of Natural History expedition prospecting and quarrying in Cretaceous deposits in the Hateg Basin and near Sebes

Romania, American Museum of Natural History expedition prospecting and quarrying in Cretaceous deposits in the Hateg Basin and near Sebes

Free State, South Africa, University of Witswatersrand expedition prospecting and quarrying in Jurassic deposits collecting dinosaurs and mammals

Alberta, Canada, Phil J. Currie Dinosaur Museum and University of Alberta expedition prospecting in Cretaceous deposits in the Grand Prairie region

Gansu Province, China, Institute of Vertebrate Paleontology and Paleoanthropology expedition quarrying for Early Cretaceous birds in the Xiagou Formation

Mongolia, American Museum of Natural History expedition prospecting for Cretaceous dinosaurs and lizards and Paleogene mammals

Xinjiang, China, Institute of Vertebrate Paleontology and Paleoanthropology expedition prospecting for dinosaurs in the Jurassic Shishugou Formation in the Junggar Basin

Utah, USA, The University of Southern California-Los Angeles County Museum of Natural History Southern Utah Dinosaur Expedition prospecting in the Kaiparowits Formation in Grand Staircase-Escalante (expedition leader)

Montana, USA, Los Angeles County Museum of Natural History expedition prospecting and quarrying in the Late Cretaceous Hell Creek Formation

Qinghai, Gansus, Xingjiang, China, Prospecting for mammals in Neogene deposits identified by oil geologists in the 1950’s

Montana, USA, Los Angeles County Museum of Natural History expedition prospecting and quarrying in the Late Cretaceous Hell Creek Formation

Inner Mongolia, China, Institute of Vertebrate Paleontology and Paleoanthropology expedition to prospect and screen-wash for mammals in Neogene deposits