We study trilobites from four periods of the Palaeozoic: the Cambrian, Ordovician, Silurian and Devonian. Our research covers trilobite taxonomy, phylogeny, functional morphology, biogeography, and ...

Abrupt climate change at the end of the Ordovician Period (~450-440 million years ago) caused the second largest mass extinction in Earth history, including the demise of the trilobite ...

Research interests Ichnotaxonomy and behavioural studies of dinosaur tracks from the Middle Jurassic of the Cleveland Basin, northern England Study of invertebrate trace fossils Biogeography and ...

This sea teemed with marine life, its abundance and diversity rivaling modern-day sea life. However, in the Ordovician, the creatures were invertebrates, or organisms lacking a backbone, such as ...