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Diversification events and the effects of mass extinctions on Crocodyliformes evolutionary history
The rich fossil record of Crocodyliformes shows a much greater diversity in the past than today in terms of morphological disparity and occupation of niches. We conducted topology-based analyses seeking diversification ...
A new Early Oligocene toothed ‘baleen’ whale from western North America
Archaic toothed mysticetes represent the evolutionary transition from raptorial to bulk filter feeding in baleen whales. Aetiocetids, in particular, preserve an intermediate morphological stage in which teeth functioned ...