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El gráfico muestra hallazgos clave sobre el descubrimiento de la vida en manada de los dinosaurios.
GN41909ES

CIENCIA

Evidencia más antigua de vida en manada de dinosaurios

By Jordi Bou

October 21, 2021 - Restos fosilizados de saurópodos de 193 millones de años indican que el Mussaurus patagonicus vivió en manadas, la evidencia más antigua de comportamiento social complejo entre los dinosaurios.

A team of palaeontologists led by Diego Pol, head of the science department at the Egidio Feruglio paleontology museum in Argentina, discovered the fossilised skeletal remains of 69 individuals and 100 eggs belonging to the species Mussaurus patagonicus in the Laguna Colorada Formation in Patagonia.

The authors identified age-specific clusters of juveniles and adults, indicating that M. patagonicus lived in herds throughout their lives but primarily associated with others of their own age within those herds.

The eggs were discovered in clutches of 8-30, arranged in 2-3 layers within trenches, suggesting they were contained in nests within a common breeding ground.

Analysis of the rocks surrounding the fossils suggests that the remains are approximately 193 million years old, pre-dating previous records of complex social behaviour among dinosaurs by over 40 million years.

Sources
PUBLISHED: 21/10/2021; STORY: Graphic News; PICTURES: Nature, Jorge Gonzalez, CONICET
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