(marine biodiversity, shelf, biotic radiation, Late Ordovician, Early Devonian)

equator-to-poleWas there more space in the late Early Devonian for marine biodiversity to peak than in the early Late Ordovician? 3Fig. 2. Overlapped Late Ordovician and Early Devonian contours of the principalcontinental blocks

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n the late Early Devonian relatively to the early LateOrdovician;– hypothetically, there was more (or the same)space for marine biodiversity to peak in the early LateOrdovician than in the late Early Devonian, whichmatches

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postdates such a maximumby ~50–60 Ma and places it into the late Early DevoWas there more space in the late Early Devonian for marinebiodiversity to peak than in the early Late Ordovician?:A brief noteDMITRY A. RUBAN1Abstract

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