We have arrived in the Devonian period, some 420 to 360 million ... Because all later land vertebrates, or tetrapods, can be traced back to a fish. This encompasses not only amphibians, reptiles ...

At that time, known as the Devonian period, the world was changing ... The transition from these lobe-fins to the earliest tetrapods -- four-legged animals that walked on land -- has long been ...

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: ...

David Broussard, Ph.D., department chair and assistant professor of biology, focuses his research on the paleontology of Late Devonian (365 – 360 million years ago) vertebrates including extinct ...

Learn about the time period that took place 416 to 359 million years ago. 4 min read When the Devonian period dawned about 416 million years ago the planet was changing its appearance. The great ...

The crown Rhipidistia mainly includes lungfishes and tetrapods to the exclusion of ... during the late Silurian to Lochkovian (Early Devonian) interval. The dipnomorph Youngolepis is the oldest ...