The pantropical Picrodendraceae produce mostly spheroidal to slightly oblate, echinate
pollen grains equipped with narrow circular to elliptic pori that can be hard to identify to …

Euphorbiaceae Juss. is a globally distributed angiosperm family with considerable diversity.
It is divided into five subfamilies, each of which possesses pollen of distinct morphology. The …

Abstract The uppermost Eocene Florissant Formation, Rocky Mountains, Colorado, has
yielded numerous insect, vertebrate and plant fossils. Three previous comprehensive …

The Dipterocarpaceae family is ubiquitous across mainland and maritime south-east Asia.
Species within the family are often so well-adapted to–and prolific within–ecologically …

Many plant families lack substantive fossil records, limiting our understanding of their origin
and evolution. The abundance and preservation potential of pollen through geological time …

The fossil record of Araceae pollen beginning in the late Early Cretaceous and peaking in
the Paleocene/Eocene is very sparse up to now, consisting of three highly distinctive types …

Two monosulcate and one disulcate palm-like pollen types are described from a Middle
Eocene lignite sample at Watupuru River, near Kalisonggo, Nanggulan, Central Java. Their …

The Dipterocarpaceae plant family, that shows a disjunct distribution in Gondwanan
continents and Southeast Asia, is a dominant constituent of the tropical rain forests of …

This paper presents new morphological and ultrastructural data on Camerosporites pollen
obtained from a range of microscopy techniques, and uses these (and other) data to emend …

We describe three unusual new species of Plukenetia sect. Madagascarienses from eastern
Madagascar based on morphology, pollen, and molecular data. Plukenetia …