The extinction began roughly 380 million years ago, midway through the segment of geologic time known as the Devonian period, or the age of fish. (Vertebrates hadn’t yet made the leap onto land.) The ...

The Devonian (419.2-358.9 Ma) is the first geological period of the late Paleozoic, spanning about 60.3 Ma from the end of the Silurian, and its beginning is marked by the First Appearance Datum ...

The geological setting in which Tiktaalik was found supports the view that shallow water habitats on Late Devonian floodplains of the Euramerican landmass were the locus for the fish–tetrapod ...

Dunkleosteus lived late in the Devonian Period, about 360 million years ago, when Ohio was covered by a shallow sea. ... Geology: Pace quickening on knowledge of dinosaurs.

Broussard, D., Daeschler, T., Trop, J.M., 2018, Detrital chronostratigraphic constraints on upper Devonian tetrapod and fish assemblages in Catskill Formation sites of north-central Pennsylvania: ...

The Devonian of the Appalachian basin is a complex geologic interval that hosts potential for the future. Some analysts suggest that the Appalachian basin could hold in excess of 200 tcf of gas in ...

Researchers in the United Kingdom recently made a shocking discovery: a prehistoric fossil forest dating back 390 million years, making it the oldest known forest in the world. Their findings, ...

This international relevance emphasizes the broader impact of these geological sites and their role in enhancing our understanding of the Middle Devonian on a global scale. Finally in terms of the ...

Lower and Middle Devonian foreland basin fill in the Catskill front: stratigraphic synthesis, sequence stratigraphy, and the Acadian orogeny, in Garver, J.I. and Smith, J.A., eds., Field Trip Guide ...

The extinction began roughly 380 million years ago, midway through the segment of geologic time known as the Devonian period, or the age of fish. (Vertebrates hadn’t yet made the leap onto land.) The ...