Unshelled ancestor fills big gap in turtle family tree
Turtles may seem like innocent creatures, but the uniquely shelled reptiles have long posed a problem for paleontologists. Shelled turtles are plentiful in the fossil record, but specimens of their intermediate forebears — the missing links between ancestral unshelled reptiles and modern turtles — have remained elusive. Now, a closer look at the skull of what may be one of the earliest turtle relatives is filling gaps in the turtle family tree.
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Oldest marine turtle found in Colombia
A 120-million-year-old sea turtle recently discovered in Colombia is about 25 million years older than the previously oldest-known marine turtle. Despite its age, the new 2-meter-long specimen is very similar to living marine turtles and was placed in the group Chelonioidea, which includes the modern Hawksbill turtle and green sea turtle.
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Mary Caperton Morton
Morton (https://theblondecoyote.com/) is a freelance science and travel writer based in Big Sky, Mont., and an EARTH roving correspondent.
Monday, December 28, 2015 - 06:00
Mary Caperton Morton
Morton (https://theblondecoyote.com/) is a freelance science and travel writer based in Big Sky, Mont., and an EARTH roving correspondent.
Monday, December 28, 2015 - 06:00
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