Dating the tree of life is a core endeavor in evolutionary biology. Rates of evolution are
fundamental to nearly every evolutionary model and process. Rates need dates. There is …

ABSTRACT The Waterloo Farm lagerstätte in South Africa provides a uniquely well‐
preserved record of a Latest Devonian estuarine ecosystem. Ecological evidence from it is …

Africa has provided many fossil fishes from sediments laid down over a 400 million year
period. The large array of fossil fishes come from diverse localities throughout the continent …

A new, third, specimen of Onychoselache traquairi from the Viséan (Holkerian) of Scotland
allows a significant revision of the anatomy of this stem‐group elasmobranch. This first …

Here we present a new species of placoderm fish, Africanaspis edmountaini sp. nov., and
redescribe Africanaspis doryssa on the basis of new material collected from the type locality …

New material from the Late Devonian Witpoort Formation (Witteberg Group, Cape
Supergroup) of Waterloo Farm (Grahamstown, South Africa) includes teeth, spines, and rare …

Four major groups of fish are represented by fragmentary remains from South Africa's Lower
Bokkeveld Group of Early to Middle Devonian age: the Acanthodii, Chondrichthyes …

New, undescribed material of the hybodont shark Tribodus limae, from the Lower
Cretaceous of northeastern Brazil, provides new information on the pectoral endoskeleton in …

Abstract Witteberg Group rocks are Late Devonian to Early Carboniferous in age.
Comparison with Laurasian sea-level curves has correlated the earliest Carboniferous …

Northwest Territories, Canada, provide a unique perspective on early jawed fish
morphology. Three of the putative chondrichthyans were previously known from only …