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Growing up Tyrannosaurus rex: Osteohistology refutes the pygmy “Nanotyrannus” and supports ontogenetic niche partitioning in juvenile Tyrannosaurus
Tyrannosaurus rex dominated its ecosystem by singularly exploiting the roles of mid- and large-sized carnivore as it grew up. Despite its iconic status as the king of dinosaurs, Tyrannosaurus rexExpand
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Early Ontogeny of Pachycephalosaurine Squamosals as Revealed by Juvenile Specimens from the Hell Creek Formation, Eastern Montana
THOMAS E. WILLIAMSON, THOMAS D. CARR, SCOTT A. WILLIAMS, and KATIE TREMAINE; New Mexico Museum of Natural History and Science, 1801 Mountain Rd, NW, Albuquerque, New Mexico 87104, U.S.A.,Expand
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A new fossil assemblage shows that large angiosperm trees grew in North America by the Turonian (Late Cretaceous)
Fossils from Utah show large flowering trees evolved at least 15 million years earlier than previously thought. The diversification of flowering plants and marked turnover in vertebrate faunas duringExpand
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