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Hutchemys walkerorum was described as a new species after researchers studied a fossilised specimen discovered in southwestern North Dakota in 1975.
In a new study, scientists have identified a softshell turtle—Hutchemys walkerorum—that lived in what is modern-day North Dakota, around 66.5 million years ago.
Sierraceratops turneri is the second new species named by Dr. Steven Jasinski, of HU’s Department of Environmental Science and Sustainability, in the past year.
Sierraceratops turneri is the second new species named by Dr. Steven Jasinski, of HU’s Department of Environmental Science and Sustainability, in the past year.
E-Mail Vertebrate life began in the water, but around 340-360 million years ago, four-limbed creatures, or tetrapods, made the transition onto land. In the years that followed, some species adapted to terrestrial life, while others turned back to the water and readapted to an aquatic lifestyle. A new study of these early amphibians, published in the journal PLOS ONE and led by Penn paleontologist Aja Carter, suggests that these environmental shifts left an impression--on the shape of the animals' spines. "I'm interested in how the shapes of the vertebrae affect how animals move," she says...