for the most part, individual
sclerites rather than whole exoskeletons. Beetles (Coleoptera)
dominated all the assemblages, but other insect orders
represented in some assemblages include ants (Hymemoptera:
Formicidae), caddisfly larvae (Trichoptera) and true bugs (Hemiptera
and Homoptera). Only the beetle results are reported here.
Fossil identifications were based on comparison with modern
museum specimens, modern specimens in the author's collection,
with the aid of taxonomic literature, and by taxonomic specialists in
some families, as noted in the acknowledgements