facebook
twitter
rss
account
search
search
 

Fossil captures moment of live birth in ancient marine reptile

Feb. 13, 2014 at 5:49 PM   |   Comments

DAVIS, Calif., Feb. 13 (UPI) -- A fossil of a giant marine reptile known as an ichthyosaur may show evidence of the oldest live reptilian birth ever seen, U.S. paleontologists say.

The partial fossil skeleton of an ichthyosaur, giant marine reptiles that evolved from land reptiles and moved to the water, was recovered in China and may show a live birth, Ryosuke Motani from the University of California, Davis, said.

The maternal skeleton was associated with three embryos and neonates: one inside the mother, another exiting the pelvis -- with half the body still inside the mother -- and the third outside of the mother, Motani and colleagues report in the journal PLoS ONE.

The headfirst birth posture of the second embryo indicates that live births in ichthyosaurs may have taken place on land instead of in the water, the researchers said.

"The study reports the oldest vertebrate fossil to capture the 'moment' of live-birth, with a baby emerging from the pelvis of its mother," Motani said. "The 248-million-year old fossil of an ichthyosaur suggests that live-bearing evolved on land and not in the sea."

© 2014 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Most Popular
1
Shellfish-inspired waterproof glue could help repair ships Shellfish-inspired waterproof glue could help repair ships
2
Iceland grows as Bardarbunga volcano continues to spew lava Iceland grows as Bardarbunga volcano continues to spew lava
3
Android phones to join iPhone in saying no to the police Android phones to join iPhone in saying no to the police
4
Pennsylvania officials issue $4.15 million fine to fracking company Pennsylvania officials issue $4.15 million fine to fracking company
5
Latest Ebola outbreak spreading much faster than in the past Latest Ebola outbreak spreading much faster than in the past
Trending News
Video
x
Feedback