[1] He was a Tilton Postdoctoral Fellow at the California Academy of Sciences and is currently a Research Zoologist and a curator of the collection of Amphibians and Reptiles at the National Museum of Natural History, Smithsonian Institution.
[11][12][13][14][15] In collaboration with Jacques Gauthier and Philip Cantino, de Queiroz has published another series of articles proposing and defending an approach to biological nomenclature based on definitions that specify the meanings of taxon names in terms of clades and common ancestry as an alternative to traditional approaches that are based on taxonomic ranks.
[20] De Queiroz has published several articles on the history and philosophy of biology, related primarily, but not exclusively, to his own theoretical and conceptual contributions.
He published a paper early in his career proposing that the Darwinian Revolution in systematic biology was not a sudden event but rather an extended process that is not yet completed.
[23] He has argued that the philosopher Karl Popper’s concept of degree of corroboration is analogous to the likelihood ratio of nested hypotheses and that in phylogenetics the probability of the evidence given the background knowledge in the absence of the hypothesis of interest (a critical component of Popper’s "Degree of Corroboration") is represented by the likelihood of a star tree.