Pentamerids declined in abundance during the Devonian. 4. Spirifers dominated the Devonian sea floor and resembled a pair of wings. Spirifers continued into the late Paleozoic and survived until the ...

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 ...

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Dalmanites is a genus of trilobite in the order Phacopida. They lived from the Late Ordovician to Middle Devonian Illustration of a Dalmanites is a genus of trilobite in the order Phacopida. They ...

Andrew previously studied an undergraduate masters degree in palaeobiology at University College London. During his undergraduate studies Andrew developed a keen interest in invertebrates and opted to ...