@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20191209-094114238,
    chapter = "A Tertiary mammalian fauna from the Mint Canyon Formation of southern California",
    year = "1930",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20191209-094114238",
    id = "record"
}


@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20191018-112352988,
    chapter = "Merychippus Isonesus (Cope) from the Later Tertiary of the Crooked River Basin, Oregon",
    year = "1928",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20191018-112352988",
    id = "record"
}