WASHINGTON — It looked like a cross between a crocodile and a salamander – and definitely was not an animal to be messed with. Long before the dinosaurs or…
New research is providing a deeper understanding of Whatcheeria, which lived roughly 330 million years ago during the Carboniferous period and arose during a time of evolutionary experimentation and innovation that unfolded in the tens of millions of years after vertebrates first conquered the land.Sign up to receive daily headline news from Ottawa Citizen, a division of Postmedia Network Inc.
“Whatcheeria was not a slow and sluggish oversized amphibian. It was this active predator that grew extraordinarily rapidly in its juvenile phase of life,” said paleontologist Megan Whitney of Loyola University in Chicago, lead author of the research published in the journal Communications Biology.“Whatcheeria is characterized by a large skull that’s loaded with teeth and robust, chunky limbs,” Whitney said.
Unlike many early tetrapods – and most extinct species of any animal – fossils of Whatcheeria have been recovered from different points in the animal’s life cycle. A microscopic examination of slices of thigh bones from nine Whatcheeria individuals revealed bone growth patterns over time.
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