Smithsonian Natural Museum of Natural History Senior Research Geologist and Curator of Vertebrate Paleontology
Smithsonian Natural Museum of Natural History Research Geologist and Curator of Fossil Plants
USDA Agricultural Research Service Western Regional Research Center Acting Director
USDA ARS Chief Data and AI Officer for REE Mission Area
Smithsonian Environmental Research Center Principal Investigator, Senior Scientist
Smithsonian National Museum of Natural History Research Zoologist & Curator
Smithsonian National Museum of Natural History Karen Osborn Research Zoologist and Curator of Annelids and Peracarids
Smithsonian National Museum of Natural History Senior Research Scientist and Curator of Fossil Arthropods
NIH National Institute of Deafness and Other Communication Disorders Section Chief
Smithsonian National Museum of Natural History Curator in Charge of Vertebrate Zoology