A comprehensive, illustrated guide to the preparation (ie extraction, concentration and
microscope slide production) of palynomorphs from samples of sediments, sedimentary …

Vertebrate vision is accomplished through light-sensitive photopigments consisting of an
opsin protein bound to a chromophore. In dim light, vertebrates generally rely on a single …

Inaccurate taxonomic placement of fossils can lead to the accumulation of errors in
molecular clock studies and their generated evolutionary lineages. There are limited fossil …

Aim Geologically dynamic areas often harbour remarkable levels of biodiversity. Among
other factors, mountain building is assumed to be a precondition for species radiation, and …

The late Early to early Middle Eocene Okanagan Highlands fossil sites, spanning∼ 1000 km
north–south (northeastern Washington State, southern British Columbia) provide an …

In the modern world, biotic diversity is typically higher in low-latitude tropical regions where
there is abundant insolation (light and heat) and low thermal seasonality. Because these …

Phylogeny, molecular sequences, fossils, biogeography, and biome occupancy are all lines
of evidence that reflect the singular evolutionary history of a clade, but they are most often …

Saxifragaceae (Saxifragales) contain approximately 640 species and 33 genera, about half
of which are monotypic. Due to factors such as morphological stasis, convergent …

The evolution of plant ecosystems during the Cenophytic was complex and influenced by
both abiotic and biotic factors. Among abiotic forces were tectonics, the distribution of …

Most major modern families of Hymenoptera were established in the Mesozoic, but the
diversifications within ecologically key trophic guilds and lineages that significantly influence …