2021
Utah, University of Minnesota – Field Museum joint expedition prospecting and quarrying in the Cretaceous Cedar Mountain Formation

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2019
Romania, American Museum of Natural History expedition prospecting and quarrying in Cretaceous deposits in the Hateg Basin and near Sebes

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2017
Romania, American Museum of Natural History expedition prospecting and quarrying in Cretaceous deposits in the Hateg Basin and near Sebes

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2016
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 (PJC Dinosaur Museum, University of Alberta)

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2014
Gansu Province, China, Institute of Vertebrate Paleontology and              Paleoanthropology expedition quarrying for Early Cretaceous birds in the Xiagou Formation

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2011
Mongolia, American Museum of Natural History expedition prospecting for Cretaceous dinosaurs and lizards and Paleogene mammals

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2010
Xinjiang, China, Institute of Vertebrate Paleontology and Paleoanthropology expedition prospecting for dinosaurs in the Jurassic Shishugou Formation in the Junggar Basin

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2007
Utah, USA, The University of Southern California-Los Angeles County Museum of Natural History Southern Utah Dinosaur Expedition prospecting in the Kaipaorwits Formation in Grand Staircase Escalante.

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2006
Montana, USA, Los Angeles County Museum of Natural History expedition prospecting and quarrying in the Late Cretaceous Hell Creek Formation

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2005
Qinghai, Gansus, Xingjiang, China, Prospecting for mammals in Neogene deposits identified by oil geologists in the 1950’s

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2003
Montana, USA, Los Angeles County Museum of Natural History expedition prospecting and quarrying in the Late Cretaceous Hell Creek Formation