A fossil of a mesosaur skeleton is seen in a recent photograph. The black bar at bottom right indicates a scale of ten millimeters.
Piñeiro suspects some mesosaur species gave birth to live young, while others laid eggs but kept those eggs in their uteruses for a long time.
In the latter scenario, a mother mesosaur may have laid her eggs near water, where the baby would have hatched following a short incubation period of a few days or mere hours, she said.
Piñeiro suspects some mesosaur species gave birth to live young, while others laid eggs but kept those eggs in their uteruses for a long time.
In the latter scenario, a mother mesosaur may have laid her eggs near water, where the baby would have hatched following a short incubation period of a few days or mere hours, she said.
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