Also, see the fossil. This is a conservative estimate that does not take into account the fact that an individual hand sample may contain more than one fossil of interest. The collection is international in scope, ranging from the Proterozoic to the Pleistocene, and including collections from 26 countries. A majority of publications generated by the collection have dealt with angiosperm systematics, but publications also have been generated on algae, fungi, lycopods, ferns, seed ferns, conifers, and insect mines and have been used to address questions of phylogeny, paleogeography, and paleoclimate. There are currently more than 3,000 type, figured and cited specimens housed in ten cabinets.
Organization is by year of publication and in the order of citation presented in the publications.