in 1976, were found in the arid South African fossils of 10 dinosaur eggs to fry in it. Embryo fossils are the oldest known dinosaur.
Moreover, fossil embryos are the oldest terrestrial vertebrates found so far. A team of paleontologists has their little skeletons studied 30 years later.
embryos are 190 million years. They are the Jurassic period. And they are of a type of dinosaur called masospondilo.
were herbivores and were the forerunners of the majestic and gigantic sauropod (which are similar to the well-known dinos Diplodocus). The masospondilos were a little different to them.
were smaller to begin: adults reached 5 meters in height and had a long neck, but not as long as they are. And the head was very small and cramped. And the biggest difference was their front legs a little shorter than the rear, so walked on two legs or four, as they did.
New techniques, new tracks
Paleontologists have reviewed bones masospondilos embryos are from the University of Toronto, led by Robert Reisz. Reviewed these fossils with a technique that did not exist when they were discovered.
Roughly what they did was lift the shell carefully and look at the embryo or part of them that was hidden under it, because some were with half out. And once they discovered the studied.
fossilized embryos measured 20 centimeters and its level of ossification (ie, the amount of bone that had formed completely in his small skeleton) were to be born.
Small had all four limbs of equal length, indicating that they were quadrupeds at birth and then growing up, did the lower extremities and more faster than the front.
other hand, had a small pelvis indicating that the muscles involved in locomotion were not nearly developed and, therefore, did not walk with ease.
also had no teeth at birth and had a big head (very different than they were also adults who were, as stated above, thin and small).
All this information suggests the paleontologists masospondilo babies require plenty of care of the mother at birth, until the constitution itself acquired by adults.
Moreover, fossil embryos are the oldest terrestrial vertebrates found so far. A team of paleontologists has their little skeletons studied 30 years later.
embryos are 190 million years. They are the Jurassic period. And they are of a type of dinosaur called masospondilo.
were herbivores and were the forerunners of the majestic and gigantic sauropod (which are similar to the well-known dinos Diplodocus). The masospondilos were a little different to them.
were smaller to begin: adults reached 5 meters in height and had a long neck, but not as long as they are. And the head was very small and cramped. And the biggest difference was their front legs a little shorter than the rear, so walked on two legs or four, as they did.
New techniques, new tracks
Paleontologists have reviewed bones masospondilos embryos are from the University of Toronto, led by Robert Reisz. Reviewed these fossils with a technique that did not exist when they were discovered.
Roughly what they did was lift the shell carefully and look at the embryo or part of them that was hidden under it, because some were with half out. And once they discovered the studied.
fossilized embryos measured 20 centimeters and its level of ossification (ie, the amount of bone that had formed completely in his small skeleton) were to be born.
Small had all four limbs of equal length, indicating that they were quadrupeds at birth and then growing up, did the lower extremities and more faster than the front.
other hand, had a small pelvis indicating that the muscles involved in locomotion were not nearly developed and, therefore, did not walk with ease.
also had no teeth at birth and had a big head (very different than they were also adults who were, as stated above, thin and small).
All this information suggests the paleontologists masospondilo babies require plenty of care of the mother at birth, until the constitution itself acquired by adults.
Source: rtve.es / Image: dinosaur embryo Recreation encontradoSVP
