Living gymnosperms comprise four major groups: cycads, Ginkgo, conifers, and
gnetophytes. Relationships among/within these lineages have not been fully resolved. Next …

Biodiversity is unevenly distributed on Earth and hotspots of biodiversity are often
associated with areas that have undergone orogenic activity during recent geological history …

One of the most fundamental questions in ecology is how many species inhabit the Earth.
However, due to massive logistical and financial challenges and taxonomic difficulties …

A new classification and linear sequence of the gymnosperms based on previous molecular
and morphological phylogenetic and other studies is presented. Currently accepted genera …

The Qinghai-Tibetan Plateau (QTP) is the highest and one of the most extensive plateaus in
the world. Phylogenetic, phylogeographic, and ecological studies support plant …

Abstract The Qinghai–Tibet Plateau (QTP) sensu lato (sl) houses an exceptional species
diversity in Asia. To develop a comprehensive understanding of species diversity in this …

This review shows a close biogeographic connection between eastern Asia and western
North America from the late Cretaceous to the late Neogene in major lineages of vascular …

Fundamental differences in the distribution of oceans and landmasses in the Northern and
Southern Hemispheres potentially impact patterns of biological diversity in the two areas …

Mountain systems harbor a substantial fraction of global biodiversity and, thus, provide
excellent opportunities to study rapid diversification and to understand the historical …

Most extant genus-level radiations in gymnosperms are of Oligocene age or younger,
reflecting widespread extinction during climate cooling at the Oligocene/Miocene boundary …