The bones and eggs of a new 70-million-year-old dinosaur that resembled a flightless bird have been found in Patagonia, scientists say.
Palaeontologists said they expected the eggs, which were fertilised and well-developed, to help explain how birds evolved from dinosaurs.
Some of the eggs were probably still inside the mother dinosaur when she died - other eggs were nearby.
The new species, Bonapartenykus ultimus, is a member of the small, long-legged, fast-moving Alvarezsaurid dinosaur family, they report in Cretaceous Research.
Although the link to modern-day birds has been disputed in the past, palaeontologist Fernando Novas said the current batch of bones resembled the skeleton of the Nandu, a modern flightless bird of the Rhea genus, native to Patagonia.
Baby Barn Owl (1 week old)
My formal science education was school level only. I left the last link for educated folk like you and Stuart Oxley.
Thank you for your contributions.
I like this fossil of Archaeopteryx with its feathers, teeth and claws, which was found in Germany. The fossil also supports the theory that birds evolved from Dinasours. I'm not aware of any other plausible explanation.
Forgive me if I'm about to say something totally ignorant. My understanding is that fossils generally form where the ground is muddy. So, if we guess that this is a mother, maybe with a nest, can we guess that she spent a great deal of time in or around water? Was she a water dino the way we have cranes or geese now?
I'm not a scientist.
The Archaeopteryx is known in German as Urvogal meaning 'first bird'. It's fossils are found in solnhoffen limestone in Bavaria Germany.
The habitat at the time is described as lagoons and islands and Archaeopteryx probably could fly and glide.
Whether or not the bird also swam might be determined by any evidence of webbed feet or similar attributes.
Cool! Thank you!