After July 4th our team grew a bit. Eric Gorscak and Sasha Prokuda arrived in time for a fourth-of-July picnic in Powell, WY and on...

The goal this summer was to collect fossils and geologic data from a Cretaceous lake deposit so that we can estimate its age and...

We spent the first morning gathering supplies and dealing with some emails. In Worland we visited with Mike Bies while we filled up our...

I started collecting plant fossils in the Bighorn Basin in 2009, but this was my first summer back to collect since starting at William...

Back in 2018, along with a group of colleagues, I created a plot showing the age, size, and distribution of angiosperm woods from...

Salviniales are an unusual group of ferns. Whereas most ferns are terrestrial or epiphytic, these are freshwater aquatic plants, and...

Sixty-four million years ago, the east coast of Patagonia was much warmer and wetter than it is today. Fossil wood, leaves, and flowers...

Sixty-five million years ago the Central American Seaway separated South America from North America, but the Drake Passage was not yet...

How did the initial diversification of flowering plants transform the world's forests? Flowering plants (angiosperms) comprise most of...

Plant fossils from the Panama Canal provide direct evidence of the ancient history of many common Neotropical forest trees. During the...

Hawaii is a hotspot for scientific research. My first encounter with research on the islands was a seminar on the diversity of endemic...

Herbaria are vital sources of comparative data for botanists and paleobotanists alike, especially those of us interested in patterns of...

Leaf-miners are insects that dwell inside of leaves during their larval stage, where they feed on the leaf mesophyll and leave a...